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Constraining the role of star cluster mergers in nuclear cluster formation: simulations confront integral-field data

MON NOT R ASTRON SOC 418 (2011) 2697-2714

Authors:

M Hartmann, VP Debattista, A Seth, M Cappellari, TR Quinn
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The Atlas3D project -- XIII. Mass and morphology of HI in early-type galaxies as a function of environment

(2011)

Authors:

Paolo Serra, Tom Oosterloo, Raffaella Morganti, Katherine Alatalo, Leo Blitz, Maxime Bois, Frederic Bournaud, Martin Bureau, Michele Cappellari, Alison F Crocker, Roger L Davies, Timothy A Davis, PT de Zeeuw, Pierre-Alain Duc, Eric Emsellem, Sadegh Khochfar, Davor Krajnovic, Harald Kuntschner, Pierre-Yves Lablanche, Richard M McDermid, Thorsten Naab, Marc Sarzi, Nicholas Scott, Scott C Trager, Anne-Marie Weijmans, Lisa M Young
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Oxford SWIFT integral field spectrograph and multiwavelength observations of the Eagle galaxy at z= 0.77

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 417:4 (2011) 2882-2890

Authors:

Susan A Kassin, L Fogarty, T Goodsall, FJ Clarke, RWC Houghton, G Salter, N Thatte, M Tecza, Roger L Davies, Benjamin J Weiner, CNA Willmer, Samir Salim, Michael C Cooper, Jeffrey A Newman, Kevin Bundy, CJ Conselice, AM Koekemoer, Lihwai Lin, Leonidas A Moustakas, Tao Wang
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Oxford SWIFT IFS and multi-wavelength observations of the Eagle galaxy at z=0.77

Monthly Notices of the Royal Astronomical Society Blackwell Publishing Inc. (2011)

Authors:

SA Kassin, L Fogarty, T Goodsall, FJ Clarke, RWC Houghton, G Salter, N Thatte, M Tecza, RL Davies, BJ Weiner, CNA Willmer, S Salim, MC Cooper, JA Newman, K Bundy, CJ Conselice, AM Koekemoer, L Lin, LA Moustakas, T Wang

Abstract:

The `Eagle' galaxy at a redshift of 0.77 is studied with the Oxford Short Wavelength Integral Field Spectrograph (SWIFT) and multi-wavelength data from the All-wavelength Extended Groth strip International Survey (AEGIS). It was chosen from AEGIS because of the bright and extended emission in its slit spectrum. Three dimensional kinematic maps of the Eagle reveal a gradient in velocity dispersion which spans 35-75 +/- 10 km/s and a rotation velocity of 25 +/- 5 km/s uncorrected for inclination. Hubble Space Telescope images suggest it is close to face-on. In comparison with galaxies from AEGIS at similar redshifts, the Eagle is extremely bright and blue in the rest-frame optical, highly star-forming, dominated by unobscured star-formation, and has a low metallicity for its size. This is consistent with its selection. The Eagle is likely undergoing a major merger and is caught in the early stage of a star-burst when it has not yet experienced metal enrichment or formed the mass of dust typically found in star-forming galaxies.
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Oxford SWIFT integral field spectrograph and multiwavelength observations of the Eagle galaxy at z= 0.77

Monthly Notices of the Royal Astronomical Society 417:4 (2011) 2882-2890

Authors:

SA Kassin, L Fogarty, T Goodsall, FJ Clarke, RWC Houghton, G Salter, N Thatte, M Tecza, RL Davies, BJ Weiner, CNA Willmer, S Salim, MC Cooper, JA Newman, K Bundy, CJ Conselice, AM Koekemoer, L Lin, LA Moustakas, T Wang

Abstract:

The 'Eagle' galaxy at a redshift of 0.77 is studied with the Oxford Short Wavelength Integral Field Spectrograph (SWIFT) and multiwavelength data from the All-wavelength Extended Groth strip International Survey (AEGIS). It was chosen from AEGIS because of the bright and extended emission in its slit spectrum. 3D kinematic maps of the Eagle reveal a gradient in velocity dispersion which spans 35-75 ± 10kms-1 and a rotation velocity of 25 ± 5kms-1 uncorrected for inclination. Hubble Space Telescope images suggest it is close to face-on. In comparison with galaxies from AEGIS at similar redshifts, the Eagle is extremely bright and blue in the rest-frame optical, highly star forming, dominated by unobscured star formation and has a low metallicity for its size. This is consistent with its selection. The Eagle is likely undergoing a major merger and is caught in the early stage of a starburst when it has not yet experienced metal enrichment or formed the mass of dust typically found in star-forming galaxies. © 2011 The Authors Monthly Notices of the Royal Astronomical Society © 2011 RAS.
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