GASP XXXVII: The Most Extreme Jellyfish Galaxies Compared with Other Disk Galaxies in Clusters, an H i Study
Por:
Luber, N., Mueller, A., van Gorkom, J. H., Poggianti, B. M., Vulcani, B., Franchetto, A., Bacchini, C., Bettoni, D., Deb, T., Fritz, J., Gullieuszik, M., Ignesti, A., Jaffe, Y., Moretti, A., Paladino, R., Ramatsoku, M., Serra, P., Smith, R., Tomicic, N., Tonnesen, S., Verheijen, M., Wolter, A.
Publicada:
1 mar 2022
Resumen:
We present the results of a Very Large Array H i imaging survey aimed at
understanding why some galaxies develop long extraplanar H alpha tails,
becoming extreme jellyfish galaxies. The observations are centered on
five extreme jellyfish galaxies optically selected from the WINGS and
OMEGAWINGS surveys and confirmed to have long H alpha tails through MUSE
observations. Each galaxy is located in a different cluster. In the
observations, there are in total 88 other spiral galaxies within the
field of view (40 ` x 40 `) and observed bandwidth (6500 km s(-1)). We
detect 13 of these 88 spirals, plus one uncataloged spiral, with H i
masses ranging from 1 to 7 x 10(9) M (circle dot). Many of these
detections have extended H i disks, two show direct evidence for ram
pressure stripping, and others are possibly affected by tidal forces
and/or ram pressure stripping. We stack the 75 nondetected spiral
galaxies and find an average H i mass of 1.9 x 10(8) M (circle dot),
which, given their average stellar mass, implies that they are very H i
deficient. Comparing the extreme jelly?sh galaxies to the other disk
galaxies, we ?nd that they are at smaller projected distance from the
cluster center, and have a higher stellar mass and higher relative
velocity than all other H i detections and most nondetections. We
conclude that the high stellar mass allows extreme jellyfish galaxies to
fall deeply into the cluster before being stripped, and the surrounding
ICM pressure gives rise to their spectacular star-forming tails.
Filiaciones:
Luber, N.:
(Corresponding Author), West Virginia Univ, Dept Phys & Astron, POB 6315, Morgantown, WV 26506 USA
(Corresponding Author), West Virginia Univ, Ctr Gravitat Waves & Cosmol, Chestnut Ridge Res Bldg, Morgantown, WV 26505 USA
West Virginia Univ, Dept Phys & Astron, POB 6315, Morgantown, WV 26506 USA
West Virginia Univ, Ctr Gravitat Waves & Cosmol, Chestnut Ridge Res Bldg, Morgantown, WV 26505 USA
Mueller, A.:
Ruhr Univ Bochum, Fac Phys & Astron, Astron Inst, Univ Str 150, D-44801 Bochum, Germany
van Gorkom, J. H.:
Columbia Univ, Dept Astron, 550 West 120th St, New York, NY 10027 USA
Poggianti, B. M.:
INAF Osservatorio Astron Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy
Vulcani, B.:
INAF Osservatorio Astron Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy
Franchetto, A.:
INAF Osservatorio Astron Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy
Univ Padua, Dipartimento Fis & Astron Galileo Galilei, Vicolo Osservatorio 3, I-35122 Padua, Italy
Bacchini, C.:
INAF Osservatorio Astron Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy
Bettoni, D.:
INAF Osservatorio Astron Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy
Deb, T.:
Univ Groningen, Kapteyn Astron Inst, Landleven 12, NL-9747 AD Groningen, Netherlands
Fritz, J.:
Univ Nacl Autonoma Mexico, Inst Radioastron & Astrofis, Campus Morelia,AP 3-72, Mexico City 58089, DF, Mexico
Gullieuszik, M.:
INAF Osservatorio Astron Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy
Ignesti, A.:
INAF Osservatorio Astron Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy
Jaffe, Y.:
Univ Valparaiso, Fac Ciencias, Inst Fis & Astron, Avda Gran Bretana 1111,Casilla 5030, Valparaiso, Chile
Moretti, A.:
INAF Osservatorio Astron Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy
Paladino, R.:
Ist Radioastron Bologna, INAF, Via Gobetti 101, I-40129 Bologna, Italy
Ramatsoku, M.:
Rhodes Univ, Dept Phys & Elect, POB 94, ZA-6140 Makhanda, South Africa
INAF Osservatorio Astron Cagliari, Via Sci 5, I-09047 Selargius, CA, Italy
Serra, P.:
INAF Osservatorio Astron Cagliari, Via Sci 5, I-09047 Selargius, CA, Italy
Smith, R.:
Korea Astron & Space Sci Inst KASI, 776 Daedeokdae Ro, Daejeon 34055, South Korea
Tomicic, N.:
INAF Osservatorio Astron Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy
Tonnesen, S.:
CCA, Flatiron Inst, 162 5th Ave, New York, NY 10010 USA
Verheijen, M.:
Univ Groningen, Kapteyn Astron Inst, Landleven 12, NL-9747 AD Groningen, Netherlands
Wolter, A.:
INAF Osservatorio Astron Brera, Via Brera 28, I-20121 Milan, Italy
hybrid, Green Submitted, Hybrid Gold
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