GASP. II. A MUSE View of Extreme Ram-Pressure Stripping along the Line of Sight: Kinematics of the Jellyfish Galaxy JO201

C. Bellhouse; Y.L. Jaffé; G.K.T. Hau; S.L. McGee; B.M. Poggianti; A. Moretti; M. Gullieuszik; D. Bettoni; G. Fasano; M. D'Onofrio; J. Fritz; A. Omizzolo; Y.-K. Sheen; B. Vulcani

doi:10.3847/1538-4357/aa7875

GASP. II. A MUSE View of Extreme Ram-Pressure Stripping along the Line of Sight: Kinematics of the Jellyfish Galaxy JO201

C. Bellhouse, Y.L. Jaffé, G.K.T. Hau, S.L. McGee, B.M. Poggianti, A. Moretti, M. Gullieuszik, D. Bettoni, G. Fasano, M. D'Onofrio, J. Fritz, A. Omizzolo, Y.-K. Sheen, B. Vulcani

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

44 Citations (Scopus)

304 Downloads (Pure)

Abstract

This paper presents a spatially resolved kinematic study of the jellyfish galaxy JO201, one of the most spectacular cases of ram-pressure stripping (RPS) in the GAs Stripping Phenomena in galaxies with MUSE (GASP) survey. By studying the environment of JO201, we find that it is moving through the dense intracluster medium of Abell 85 at supersonic speeds along our line of sight, and that it is likely accompanied by a small group of galaxies. Given the density of the intracluster medium and the galaxy's mass, projected position, and velocity within the cluster, we estimate that JO201 must so far have lost ∼50% of its gas during infall via RPS. The MUSE data indeed reveal a smooth stellar disk accompanied by large projected tails of ionized (Hα) gas, composed of kinematically cold (velocity dispersion <40 km s-1) star-forming knots and very warm (<100 km s-1) diffuse emission, that extend out to at least ∼50 kpc from the galaxy center. The ionized Hα-emitting gas in the disk rotates with the stars out to ∼6 kpc; but, in the disk outskirts, it becomes increasingly redshifted with respect to the (undisturbed) stellar disk. The observed disturbances are consistent with the presence of gas trailing behind the stellar component resulting from intense face-on RPS along the line of sight. Our kinematic analysis is consistent with the estimated fraction of lost gas and reveals that stripping of the disk happens outside-in, causing shock heating and gas compression in the stripped tails. © 2017. The American Astronomical Society. All rights reserved.

Original language	English
Journal	The Astrophysical Journal
Volume	844
Issue number	1
DOIs	https://doi.org/10.3847/1538-4357/aa7875
Publication status	Published - 20 Jul 2017

Bibliographical note

Export Date: 15 August 2017

Correspondence Address: Bellhouse, C.; University of Birmingham, School of Physics and AstronomyUnited Kingdom; email: cbellhou@eso.org

References: Abadi, M.G., Moore, B., Bower, R.G., (1999) MNRAS, 308, p. 947; Bacon, R., Accardo, M., Adjali, L., (2010) Proc. SPIE, 7735; Baldry, I.K., Balogh, M.L., Bower, R.G., (2006) MNRAS, 373, p. 469; Balogh, M.L., Navarro, J.F., Morris, S.L., (2000) ApJ, 540 (1), p. 113; Bekki, K., Couch, W.J., (2003) ApJL, 596, p. L13; Bertelli, G., Bressan, A., Chiosi, C., Fagotto, F., Nasi, E., (1994) A&AS, p. 106; Binney, J., Tremaine, S., (2008) Galactic Dynamics, , 2nd ed. (Princeton, NJ: Princeton Univ. Press); Boselli, A., Cortese, L., Boquien, M., (2014) A&A, 564, p. A66; Boselli, A., Cuillandre, J.C., Fossati, M., (2016) A&A, 587, p. A68; Boselli, A., Gavazzi, G., (2006) PASP, 118 (842), p. 517; Boselli, A., Gavazzi, G., Lequeux, J., (1997) A&A, 327, p. 522; Bravo-Alfaro, H., Caretta, C.A., Lobo, C., Durret, F., Scott, T., (2009) A&A, 495, p. 379; Byrd, G., Valtonen, M., (1990) ApJ, 350, p. 89; Calvi, R., Poggianti, B.M., Vulcani, B., (2011) MNRAS, 416, p. 727; Cappellari, M., Copin, Y., (2003) MNRAS, 342, p. 345; Cappellari, M., Emsellem, E., (2004) PASP, 116 (816), p. 138; Cardelli, J.A., Clayton, G.C., Mathis, J.S., (1989) ApJ, 345, p. 245; Cava, A., Bettoni, D., Poggianti, B.M., (2009) A&A, 495, p. 707; Cavaliere, A., Fusco-Femiano, R., (1976) A&A, 49, p. 137; Cayatte, V., Van Gorkom, J.H., Balkowski, C., Kotanyi, C., (1990) AJ, 100, p. 604; Chabrier, G., (2003) PASP, 115 (809), p. 763; Chen, Y., Reiprich, T.H., Böhringer, H., Ikebe, Y., Zhang, Y.-Y., (2007) A&A, 466, p. 805; Chung, A., Van Gorkom, J.H., Kenney, J.D.P., Crowl, H., Vollmer, B., (2009) AJ, 138 (6), p. 1741; Chung, A., Van Gorkom, J.H., Kenney, J.D.P., Vollmer, B., (2007) ApJL, 659, p. L115; Cortese, L., Davies, J.I., Pohlen, M., (2010) A&A, 518, p. L49; Cortese, L., Marcillac, D., Richard, J., (2007) MNRAS, 376, p. 157; Cowie, L.L., Songaila, A., (1977) Natur, 266, p. 501; Diehl, S., Statler, T.S., (2006) MNRAS, 368, p. 497; Dressler, A., (1980) ApJ, 236, p. 351; Dressler, A., Shectman, S.A., (1988) AJ, 95, p. 985; Durret, F., Lima Neto, G.B., Forman, W., (2005) A&A, 432, p. 809; Ebeling, H., Stephenson, L.N., Edge, A.C., (2014) ApJL, 781, p. L40; Evrard, A.E., (1991) MNRAS, 248, p. 8P; Faltenbacher, A., Diemand, J., (2006) MNRAS, 369, p. 1698; Fasano, G., Marmo, C., Varela, J., (2006) A&A, 445, p. 805; Fossati, M., Fumagalli, M., Boselli, A., (2016) MNRAS, 455, p. 2028; Fossati, M., Gavazzi, G., Boselli, A., Fumagalli, M., (2012) A&A, 544, p. A128; Fujita, Y., (1998) ApJ, 509 (2), p. 587; Fujita, Y., Nagashima, M., (1999) ApJ, 516 (2), p. 619; Fumagalli, M., Fossati, M., Hau, G.K.T., (2014) MNRAS, 445, p. 4335; Gavazzi, G., Boselli, A., Pedotti, P., Gallazzi, A., Carrasco, L., (2002) A&A, 396, p. 449; Girardi, L., Bressan, A., Chiosi, C., Bertelli, G., Nasi, E., (1996) A&AS, 117 (1), p. 113; Gullieuszik, M., Poggianti, B., Fasano, G., (2015) A&A, 581, p. A41; Gunn, J.E., Gott, J.R., III, (1972) ApJ, 176, p. 1; Haines, C.P., Pereira, M.J., Smith, G.P., (2015) ApJ, 806 (1), p. 101; Haynes, M.P., Giovanelli, R., (1984) AJ, 89, p. 758; Hester, J.A., Seibert, M., Neill, J.D., (2010) ApJL, 716, p. L14; Ho, I.-T., Kewley, L.J., Dopita, M.A., (2014) MNRAS, 444, p. 3894; Ichinohe, Y., Werner, N., Simionescu, A., (2015) MNRAS, 448, p. 2971; Jaffé, Y.L., Smith, R., Candlish, G.N., (2015) MNRAS, 448, p. 1715; Jaffé, Y.L., Verheijen, M.A.W., Haines, C.P., (2016) MNRAS, 461, p. 1202; Kenney, J.D.P., Geha, M., Jáchym, P., (2014) ApJ, 780 (2), p. 119; Kenney, J.D.P., Koopmann, R.A., (1999) AJ, 117 (1), p. 181; Kenney, J.D.P., Van Gorkom, J.H., Vollmer, B., (2004) AJ, 127 (6), p. 3361; Kenney, J.D.P., Young, J.S., (1989) ApJ, 344, p. 171; Kronberger, T., Kapferer, W., Unterguggenberger, S., Schindler, S., Ziegler, B.L., (2008) A&A, 483, p. 783; Larson, R.B., Tinsley, B.M., Caldwell, C.N., (1980) ApJ, 237, p. 692; McPartland, C., Ebeling, H., Roediger, E., Blumenthal, K., (2016) MNRAS, 455, p. 2994; Merluzzi, P., Busarello, G., Dopita, M.A., (2013) MNRAS, 429, p. 1747; Merritt, D., (1983) ApJ, 264, p. 24; Mihos, J.C., Hernquist, L., (1994) ApJL, 425, p. L13; Moore, B., Katz, N., Lake, G., Dressler, A., Oemler, A., (1996) Natur, 379, p. 613; Moore, B., Lake, G., Katz, N., (1998) ApJ, 495 (1), p. 139; Moretti, A., Gullieuszik, M., Poggianti, B., (2017) A&A, 599, p. A81; Moretti, A., Poggianti, B.M., Fasano, G., (2014) A&A, 564, p. A138; Navarro, J.F., Frenk, C.S., White, S.D.M., (1996) ApJ, 462, p. 563; Owers, M.S., Couch, W.J., Nulsen, P.E.J., Randall, S.W., (2012) ApJL, 750, p. L23; Peng, Y.-J., Lilly, S.J., Kovač, K., (2010) ApJ, 721 (1), p. 193; Poggianti, B.M., Fasano, G., Omizzolo, A., (2016) AJ, 151 (3), p. 78; Poggianti, B.M., Moretti, A., Gullieuszik, M., (2017) ApJ, 844, p. 48. , (Paper I); Quilis, V., Moore, B., Bower, R., (2000) Sci, 288, p. 1617; Rawle, T.D., Altieri, B., Egami, E., (2014) MNRAS, 442, p. 196; Roediger, E., Brüggen, M., (2007) MNRAS, 380, p. 1399; Salpeter, E.E., (1955) ApJ, 121, p. 161; Schlafly, E.F., Finkbeiner, D.P., (2011) ApJ, 737 (2), p. 103; Smith, R.J., Lucey, J.R., Hammer, D., (2010) MNRAS, 408, p. 1417; Spitzer, L., Jr., Baade, W., (1951) ApJ, 113, p. 413; Springel, V., (2000) MNRAS, 312, p. 859; Takeda, H., Nulsen, P.E.J., Fabian, A.C., (1984) MNRAS, 208, p. 261; Tinsley, B.M., Larson, R.B., (1979) MNRAS, 186, p. 503; Tonnesen, S., Bryan, G.L., (2009) ApJ, 694 (2), p. 789; Tonnesen, S., Bryan, G.L., (2010) ApJ, 709 (2), p. 1203; Tonnesen, S., Bryan, G.L., (2012) MNRAS, 422, p. 1609; Toomre, A., (1977) Proc. Conf. at Yale Univ., Evolution of Galaxies and Stellar Populations, p. 401. , ed B. M. Tinsley, R. B. G. Larson and D. Campbell (New Haven, CT: Yale Univ. Observatory); Valluri, M., (1993) ApJ, 408, p. 57; Van Den Bosch, F.C., (2002) MNRAS, 332, p. 456; Vazdekis, A., Sánchez-Blázquez, P., Falcón-Barroso, J., (2010) MNRAS, 404, p. 1639; Veilleux, S., Cecil, G., Bland-Hawthorn, J., (2005) ARA&A, 43, p. 769; Verdes-Montenegro, L., Yun, M.S., Williams, B.A., (2001) A&A, 377, p. 812; Vogt, F.P.A., Owen, C.I., Verdes-Montenegro, L., Borthakur, S., (2016) ApJ, 818 (2), p. 115; Vogt, F.P.A., Seitenzahl, I.R., Dopita, M.A., Ruiter, A.J., (2016) PASP, 129, p. 975; Vollmer, B., Cayatte, V., Balkowski, C., Duschl, W.J., (2001) ApJ, 561 (2), p. 708; Vollmer, B., Wong, O.I., Braine, J., Chung, A., Kenney, J.D.P., (2012) A&A, 543, p. A33; Yagi, M., Yoshida, M., Komiyama, Y., (2010) AJ, 140 (6), p. 1814; Yoon, Y., Im, M., Kim, J.-W., (2017) ApJ, 834 (1), p. 73; Yoshida, M., Yagi, M., Komiyama, Y., (2008) ApJ, 688 (2), p. 918

Keywords

galaxies: clusters: general
galaxies: evolution
galaxies: ISM
galaxies: kinematics and dynamics
techniques: imaging spectroscopy

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10.3847/1538-4357/aa7875

Bellhouse_et_al_GASP.II._a_MUSE_view_of_extreme_The_Astrophysical_Journal_2017
Checked for eligibility: 16/08/2017. © 2017. The American Astronomical Society. All rights reserved. http://iopscience.iop.org/article/10.3847/1538-4357/aa7875/meta;jsessionid=421D1BBF71BEF9D58D2895093D253EBA.c2.iopscience.cld.iop.org
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Cite this

Bellhouse, C., Jaffé, Y. L., Hau, G. K. T., McGee, S. L., Poggianti, B. M., Moretti, A., Gullieuszik, M., Bettoni, D., Fasano, G., D'Onofrio, M., Fritz, J., Omizzolo, A., Sheen, Y.-K., & Vulcani, B. (2017). GASP. II. A MUSE View of Extreme Ram-Pressure Stripping along the Line of Sight: Kinematics of the Jellyfish Galaxy JO201. The Astrophysical Journal, 844(1). https://doi.org/10.3847/1538-4357/aa7875

@article{dfbe75f3825d4c70b82eb2726fdf1f0f,

title = "GASP. II. A MUSE View of Extreme Ram-Pressure Stripping along the Line of Sight: Kinematics of the Jellyfish Galaxy JO201",

abstract = "This paper presents a spatially resolved kinematic study of the jellyfish galaxy JO201, one of the most spectacular cases of ram-pressure stripping (RPS) in the GAs Stripping Phenomena in galaxies with MUSE (GASP) survey. By studying the environment of JO201, we find that it is moving through the dense intracluster medium of Abell 85 at supersonic speeds along our line of sight, and that it is likely accompanied by a small group of galaxies. Given the density of the intracluster medium and the galaxy's mass, projected position, and velocity within the cluster, we estimate that JO201 must so far have lost ∼50% of its gas during infall via RPS. The MUSE data indeed reveal a smooth stellar disk accompanied by large projected tails of ionized (Hα) gas, composed of kinematically cold (velocity dispersion <40 km s-1) star-forming knots and very warm (<100 km s-1) diffuse emission, that extend out to at least ∼50 kpc from the galaxy center. The ionized Hα-emitting gas in the disk rotates with the stars out to ∼6 kpc; but, in the disk outskirts, it becomes increasingly redshifted with respect to the (undisturbed) stellar disk. The observed disturbances are consistent with the presence of gas trailing behind the stellar component resulting from intense face-on RPS along the line of sight. Our kinematic analysis is consistent with the estimated fraction of lost gas and reveals that stripping of the disk happens outside-in, causing shock heating and gas compression in the stripped tails. {\textcopyright} 2017. The American Astronomical Society. All rights reserved.",

keywords = "galaxies: clusters: general, galaxies: evolution, galaxies: ISM, galaxies: kinematics and dynamics, techniques: imaging spectroscopy",

author = "C. Bellhouse and Y.L. Jaff{\'e} and G.K.T. Hau and S.L. McGee and B.M. Poggianti and A. Moretti and M. Gullieuszik and D. Bettoni and G. Fasano and M. D'Onofrio and J. Fritz and A. Omizzolo and Y.-K. Sheen and B. Vulcani",

note = "Export Date: 15 August 2017 Correspondence Address: Bellhouse, C.; University of Birmingham, School of Physics and AstronomyUnited Kingdom; email: cbellhou@eso.org References: Abadi, M.G., Moore, B., Bower, R.G., (1999) MNRAS, 308, p. 947; Bacon, R., Accardo, M., Adjali, L., (2010) Proc. SPIE, 7735; Baldry, I.K., Balogh, M.L., Bower, R.G., (2006) MNRAS, 373, p. 469; Balogh, M.L., Navarro, J.F., Morris, S.L., (2000) ApJ, 540 (1), p. 113; Bekki, K., Couch, W.J., (2003) ApJL, 596, p. L13; Bertelli, G., Bressan, A., Chiosi, C., Fagotto, F., Nasi, E., (1994) A&AS, p. 106; Binney, J., Tremaine, S., (2008) Galactic Dynamics, , 2nd ed. (Princeton, NJ: Princeton Univ. Press); Boselli, A., Cortese, L., Boquien, M., (2014) A&A, 564, p. A66; Boselli, A., Cuillandre, J.C., Fossati, M., (2016) A&A, 587, p. A68; Boselli, A., Gavazzi, G., (2006) PASP, 118 (842), p. 517; Boselli, A., Gavazzi, G., Lequeux, J., (1997) A&A, 327, p. 522; Bravo-Alfaro, H., Caretta, C.A., Lobo, C., Durret, F., Scott, T., (2009) A&A, 495, p. 379; Byrd, G., Valtonen, M., (1990) ApJ, 350, p. 89; Calvi, R., Poggianti, B.M., Vulcani, B., (2011) MNRAS, 416, p. 727; Cappellari, M., Copin, Y., (2003) MNRAS, 342, p. 345; Cappellari, M., Emsellem, E., (2004) PASP, 116 (816), p. 138; Cardelli, J.A., Clayton, G.C., Mathis, J.S., (1989) ApJ, 345, p. 245; Cava, A., Bettoni, D., Poggianti, B.M., (2009) A&A, 495, p. 707; Cavaliere, A., Fusco-Femiano, R., (1976) A&A, 49, p. 137; Cayatte, V., Van Gorkom, J.H., Balkowski, C., Kotanyi, C., (1990) AJ, 100, p. 604; Chabrier, G., (2003) PASP, 115 (809), p. 763; Chen, Y., Reiprich, T.H., B{\"o}hringer, H., Ikebe, Y., Zhang, Y.-Y., (2007) A&A, 466, p. 805; Chung, A., Van Gorkom, J.H., Kenney, J.D.P., Crowl, H., Vollmer, B., (2009) AJ, 138 (6), p. 1741; Chung, A., Van Gorkom, J.H., Kenney, J.D.P., Vollmer, B., (2007) ApJL, 659, p. L115; Cortese, L., Davies, J.I., Pohlen, M., (2010) A&A, 518, p. L49; Cortese, L., Marcillac, D., Richard, J., (2007) MNRAS, 376, p. 157; Cowie, L.L., Songaila, A., (1977) Natur, 266, p. 501; Diehl, S., Statler, T.S., (2006) MNRAS, 368, p. 497; Dressler, A., (1980) ApJ, 236, p. 351; Dressler, A., Shectman, S.A., (1988) AJ, 95, p. 985; Durret, F., Lima Neto, G.B., Forman, W., (2005) A&A, 432, p. 809; Ebeling, H., Stephenson, L.N., Edge, A.C., (2014) ApJL, 781, p. L40; Evrard, A.E., (1991) MNRAS, 248, p. 8P; Faltenbacher, A., Diemand, J., (2006) MNRAS, 369, p. 1698; Fasano, G., Marmo, C., Varela, J., (2006) A&A, 445, p. 805; Fossati, M., Fumagalli, M., Boselli, A., (2016) MNRAS, 455, p. 2028; Fossati, M., Gavazzi, G., Boselli, A., Fumagalli, M., (2012) A&A, 544, p. A128; Fujita, Y., (1998) ApJ, 509 (2), p. 587; Fujita, Y., Nagashima, M., (1999) ApJ, 516 (2), p. 619; Fumagalli, M., Fossati, M., Hau, G.K.T., (2014) MNRAS, 445, p. 4335; Gavazzi, G., Boselli, A., Pedotti, P., Gallazzi, A., Carrasco, L., (2002) A&A, 396, p. 449; Girardi, L., Bressan, A., Chiosi, C., Bertelli, G., Nasi, E., (1996) A&AS, 117 (1), p. 113; Gullieuszik, M., Poggianti, B., Fasano, G., (2015) A&A, 581, p. A41; Gunn, J.E., Gott, J.R., III, (1972) ApJ, 176, p. 1; Haines, C.P., Pereira, M.J., Smith, G.P., (2015) ApJ, 806 (1), p. 101; Haynes, M.P., Giovanelli, R., (1984) AJ, 89, p. 758; Hester, J.A., Seibert, M., Neill, J.D., (2010) ApJL, 716, p. L14; Ho, I.-T., Kewley, L.J., Dopita, M.A., (2014) MNRAS, 444, p. 3894; Ichinohe, Y., Werner, N., Simionescu, A., (2015) MNRAS, 448, p. 2971; Jaff{\'e}, Y.L., Smith, R., Candlish, G.N., (2015) MNRAS, 448, p. 1715; Jaff{\'e}, Y.L., Verheijen, M.A.W., Haines, C.P., (2016) MNRAS, 461, p. 1202; Kenney, J.D.P., Geha, M., J{\'a}chym, P., (2014) ApJ, 780 (2), p. 119; Kenney, J.D.P., Koopmann, R.A., (1999) AJ, 117 (1), p. 181; Kenney, J.D.P., Van Gorkom, J.H., Vollmer, B., (2004) AJ, 127 (6), p. 3361; Kenney, J.D.P., Young, J.S., (1989) ApJ, 344, p. 171; Kronberger, T., Kapferer, W., Unterguggenberger, S., Schindler, S., Ziegler, B.L., (2008) A&A, 483, p. 783; Larson, R.B., Tinsley, B.M., Caldwell, C.N., (1980) ApJ, 237, p. 692; McPartland, C., Ebeling, H., Roediger, E., Blumenthal, K., (2016) MNRAS, 455, p. 2994; Merluzzi, P., Busarello, G., Dopita, M.A., (2013) MNRAS, 429, p. 1747; Merritt, D., (1983) ApJ, 264, p. 24; Mihos, J.C., Hernquist, L., (1994) ApJL, 425, p. L13; Moore, B., Katz, N., Lake, G., Dressler, A., Oemler, A., (1996) Natur, 379, p. 613; Moore, B., Lake, G., Katz, N., (1998) ApJ, 495 (1), p. 139; Moretti, A., Gullieuszik, M., Poggianti, B., (2017) A&A, 599, p. A81; Moretti, A., Poggianti, B.M., Fasano, G., (2014) A&A, 564, p. A138; Navarro, J.F., Frenk, C.S., White, S.D.M., (1996) ApJ, 462, p. 563; Owers, M.S., Couch, W.J., Nulsen, P.E.J., Randall, S.W., (2012) ApJL, 750, p. L23; Peng, Y.-J., Lilly, S.J., Kova{\v c}, K., (2010) ApJ, 721 (1), p. 193; Poggianti, B.M., Fasano, G., Omizzolo, A., (2016) AJ, 151 (3), p. 78; Poggianti, B.M., Moretti, A., Gullieuszik, M., (2017) ApJ, 844, p. 48. , (Paper I); Quilis, V., Moore, B., Bower, R., (2000) Sci, 288, p. 1617; Rawle, T.D., Altieri, B., Egami, E., (2014) MNRAS, 442, p. 196; Roediger, E., Br{\"u}ggen, M., (2007) MNRAS, 380, p. 1399; Salpeter, E.E., (1955) ApJ, 121, p. 161; Schlafly, E.F., Finkbeiner, D.P., (2011) ApJ, 737 (2), p. 103; Smith, R.J., Lucey, J.R., Hammer, D., (2010) MNRAS, 408, p. 1417; Spitzer, L., Jr., Baade, W., (1951) ApJ, 113, p. 413; Springel, V., (2000) MNRAS, 312, p. 859; Takeda, H., Nulsen, P.E.J., Fabian, A.C., (1984) MNRAS, 208, p. 261; Tinsley, B.M., Larson, R.B., (1979) MNRAS, 186, p. 503; Tonnesen, S., Bryan, G.L., (2009) ApJ, 694 (2), p. 789; Tonnesen, S., Bryan, G.L., (2010) ApJ, 709 (2), p. 1203; Tonnesen, S., Bryan, G.L., (2012) MNRAS, 422, p. 1609; Toomre, A., (1977) Proc. Conf. at Yale Univ., Evolution of Galaxies and Stellar Populations, p. 401. , ed B. M. Tinsley, R. B. G. Larson and D. Campbell (New Haven, CT: Yale Univ. Observatory); Valluri, M., (1993) ApJ, 408, p. 57; Van Den Bosch, F.C., (2002) MNRAS, 332, p. 456; Vazdekis, A., S{\'a}nchez-Bl{\'a}zquez, P., Falc{\'o}n-Barroso, J., (2010) MNRAS, 404, p. 1639; Veilleux, S., Cecil, G., Bland-Hawthorn, J., (2005) ARA&A, 43, p. 769; Verdes-Montenegro, L., Yun, M.S., Williams, B.A., (2001) A&A, 377, p. 812; Vogt, F.P.A., Owen, C.I., Verdes-Montenegro, L., Borthakur, S., (2016) ApJ, 818 (2), p. 115; Vogt, F.P.A., Seitenzahl, I.R., Dopita, M.A., Ruiter, A.J., (2016) PASP, 129, p. 975; Vollmer, B., Cayatte, V., Balkowski, C., Duschl, W.J., (2001) ApJ, 561 (2), p. 708; Vollmer, B., Wong, O.I., Braine, J., Chung, A., Kenney, J.D.P., (2012) A&A, 543, p. A33; Yagi, M., Yoshida, M., Komiyama, Y., (2010) AJ, 140 (6), p. 1814; Yoon, Y., Im, M., Kim, J.-W., (2017) ApJ, 834 (1), p. 73; Yoshida, M., Yagi, M., Komiyama, Y., (2008) ApJ, 688 (2), p. 918",

year = "2017",

month = jul,

day = "20",

doi = "10.3847/1538-4357/aa7875",

language = "English",

volume = "844",

journal = "The Astrophysical Journal",

issn = "0004637X",

publisher = "Institute of Physics Publishing Ltd",

number = "1",

}

Bellhouse, C, Jaffé, YL, Hau, GKT, McGee, SL, Poggianti, BM, Moretti, A, Gullieuszik, M, Bettoni, D, Fasano, G, D'Onofrio, M, Fritz, J, Omizzolo, A, Sheen, Y-K & Vulcani, B 2017, 'GASP. II. A MUSE View of Extreme Ram-Pressure Stripping along the Line of Sight: Kinematics of the Jellyfish Galaxy JO201', The Astrophysical Journal, vol. 844, no. 1. https://doi.org/10.3847/1538-4357/aa7875

TY - JOUR

T1 - GASP. II. A MUSE View of Extreme Ram-Pressure Stripping along the Line of Sight: Kinematics of the Jellyfish Galaxy JO201

AU - Bellhouse, C.

AU - Jaffé, Y.L.

AU - Hau, G.K.T.

AU - McGee, S.L.

AU - Poggianti, B.M.

AU - Moretti, A.

AU - Gullieuszik, M.

AU - Bettoni, D.

AU - Fasano, G.

AU - D'Onofrio, M.

AU - Fritz, J.

AU - Omizzolo, A.

AU - Sheen, Y.-K.

AU - Vulcani, B.

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PY - 2017/7/20

Y1 - 2017/7/20

N2 - This paper presents a spatially resolved kinematic study of the jellyfish galaxy JO201, one of the most spectacular cases of ram-pressure stripping (RPS) in the GAs Stripping Phenomena in galaxies with MUSE (GASP) survey. By studying the environment of JO201, we find that it is moving through the dense intracluster medium of Abell 85 at supersonic speeds along our line of sight, and that it is likely accompanied by a small group of galaxies. Given the density of the intracluster medium and the galaxy's mass, projected position, and velocity within the cluster, we estimate that JO201 must so far have lost ∼50% of its gas during infall via RPS. The MUSE data indeed reveal a smooth stellar disk accompanied by large projected tails of ionized (Hα) gas, composed of kinematically cold (velocity dispersion <40 km s-1) star-forming knots and very warm (<100 km s-1) diffuse emission, that extend out to at least ∼50 kpc from the galaxy center. The ionized Hα-emitting gas in the disk rotates with the stars out to ∼6 kpc; but, in the disk outskirts, it becomes increasingly redshifted with respect to the (undisturbed) stellar disk. The observed disturbances are consistent with the presence of gas trailing behind the stellar component resulting from intense face-on RPS along the line of sight. Our kinematic analysis is consistent with the estimated fraction of lost gas and reveals that stripping of the disk happens outside-in, causing shock heating and gas compression in the stripped tails. © 2017. The American Astronomical Society. All rights reserved.

AB - This paper presents a spatially resolved kinematic study of the jellyfish galaxy JO201, one of the most spectacular cases of ram-pressure stripping (RPS) in the GAs Stripping Phenomena in galaxies with MUSE (GASP) survey. By studying the environment of JO201, we find that it is moving through the dense intracluster medium of Abell 85 at supersonic speeds along our line of sight, and that it is likely accompanied by a small group of galaxies. Given the density of the intracluster medium and the galaxy's mass, projected position, and velocity within the cluster, we estimate that JO201 must so far have lost ∼50% of its gas during infall via RPS. The MUSE data indeed reveal a smooth stellar disk accompanied by large projected tails of ionized (Hα) gas, composed of kinematically cold (velocity dispersion <40 km s-1) star-forming knots and very warm (<100 km s-1) diffuse emission, that extend out to at least ∼50 kpc from the galaxy center. The ionized Hα-emitting gas in the disk rotates with the stars out to ∼6 kpc; but, in the disk outskirts, it becomes increasingly redshifted with respect to the (undisturbed) stellar disk. The observed disturbances are consistent with the presence of gas trailing behind the stellar component resulting from intense face-on RPS along the line of sight. Our kinematic analysis is consistent with the estimated fraction of lost gas and reveals that stripping of the disk happens outside-in, causing shock heating and gas compression in the stripped tails. © 2017. The American Astronomical Society. All rights reserved.

KW - galaxies: clusters: general

KW - galaxies: evolution

KW - galaxies: ISM

KW - galaxies: kinematics and dynamics

KW - techniques: imaging spectroscopy

U2 - 10.3847/1538-4357/aa7875

DO - 10.3847/1538-4357/aa7875

M3 - Article

SN - 0004637X

VL - 844

JO - The Astrophysical Journal

JF - The Astrophysical Journal

IS - 1

ER -

GASP. II. A MUSE View of Extreme Ram-Pressure Stripping along the Line of Sight: Kinematics of the Jellyfish Galaxy JO201

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