GASP I. Gas Stripping Phenomena in Galaxies with MUSE
Por:
Poggianti, Bianca M., Moretti, Alessia, Gullieuszik, Marco, Fritz, Jacopo, Jaffe, Yara, Bettoni, Daniela, Fasano, Giovanni, Bellhouse, Callum, Hau, George, Vulcani, Benedetta, Biviano, Andrea, Omizzolo, Alessandro, Paccagnella, Angela, D'Onofrio, Mauro, Cava, Antonio, Sheen, Y. -K., Couch, Warrick, Owers, Matt
Publicada:
20 jul 2017
Resumen:
GAs Stripping Phenomena in galaxies with MUSE (GASP) is a new
integral-field spectroscopic survey with MUSE at the VLT aimed. at
studying gas removal processes in galaxies. We present an overview of
the survey and show a first example of a galaxy undergoing strong gas
stripping. GASP is obtaining deep MUSE data for 114 galaxies at z =
0.04-0.07 with stellar masses in the range 10(9.2)-10(11.5) M circle dot
in different environments (galaxy clusters and groups. over more than
four orders of magnitude in halo mass). GASP targets galaxies with
optical signatures of unilateral debris or tails reminiscent of
gas-stripping processes (''jellyfish galaxies''), as well as a
control sample of disk galaxies with no morphological anomalies. GASP is
the only existing integral field unit (IFU) survey covering both the
main galaxy body and the outskirts and surroundings, where the IFU data
can reveal the presence and. origin of the outer gas. To demonstrate
GASP's ability to probe the physics of gas and stars, we show the
complete analysis of a textbook case of a jellyfish. galaxy, JO206. This
is a massive galaxy (9 x 10(10) M circle dot) in a low-mass cluster
(sigma similar to 500 km s(-1)). at a small projected clustercentric
radius and a high relative velocity, with >= 90 kpc long tentacles of
ionized gas stripped away by ram pressure. We present the spatially
resolved kinematics and physical properties of the. gas and stars. and
depict the evolutionary history of this galaxy.
Filiaciones:
Poggianti, Bianca M.:
INAF Astron Observ Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy
Moretti, Alessia:
INAF Astron Observ Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy
Gullieuszik, Marco:
INAF Astron Observ Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy
Fritz, Jacopo:
Univ Nacl Autonoma Mexico, Inst Radioastron & Astrofis, Campus Morelia,AP 3-72, Mexico City 58089, DF, Mexico
Jaffe, Yara:
European So Observ, Alonso Cordova 3107, Santiago 19001, Chile
Bettoni, Daniela:
INAF Astron Observ Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy
Fasano, Giovanni:
INAF Astron Observ Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy
Bellhouse, Callum:
European So Observ, Alonso Cordova 3107, Santiago 19001, Chile
Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England
Hau, George:
European So Observ, Alonso Cordova 3107, Santiago 19001, Chile
Vulcani, Benedetta:
Univ Melbourne, Sch Phys, Swanston St & Tin Alley, Parkville, Vic 3010, Australia
Biviano, Andrea:
INAF Osservatorio Astronomico Trieste, Via GB Tiepolo 11, I-34131 Trieste, Italy
Omizzolo, Alessandro:
Vatican Observ, Vatican, Vatican
Paccagnella, Angela:
INAF Astron Observ Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy
Univ Padua, Dept Phys & Astron, Vicolo Osservatorio 5, I-35122 Padua, Italy
D'Onofrio, Mauro:
Univ Padua, Dept Phys & Astron, Vicolo Osservatorio 5, I-35122 Padua, Italy
Cava, Antonio:
Univ Geneva, Observ Geneve, 51 Ch Maillettes, CH-1290 Versoix, Switzerland
Sheen, Y. -K.:
Korea Astron & Space Sci Inst, Daejeon 305348, South Korea
Couch, Warrick:
Australian Astron Observ, N Ryde, NSW 1670, Australia
Owers, Matt:
Australian Astron Observ, N Ryde, NSW 1670, Australia
Macquarie Univ, Dept Phys & Astron, N Ryde, NSW 2109, Australia
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