Browsing by Author "Windhorst, R.A."

Now showing items 1-11 of 11

    • Anatomy of a post-starburst minor merger : A multi-wavelength WFC3 study of NGC 4150 

      Crockett, R.M.; Kaviraj, S.; Silk, J.I.; Whitmore, B.C.; Mutchler, M.; Bond, H.E.; O'Connell, R.W.; Balick, B.; Calzetti, D.; Carollo, C.M.; Disney, M.J.; Dopita, M.A.; Frogel, J.A.; Hall, D.N.B.; Holtzman, J. A.; Kimble, R.A.; McCarthy, P.J.; Paresce, F.; Saha, A.; Trauger, J.T.; Walker, A.R.; Windhorst, R.A.; Young, E.T.; Jeong, H.; Yi, S.K. (2011-02-01)
      We present a spatially resolved near-UV/optical study, using the Wide Field Camera 3 (WFC3) on board the Hubble Space Telescope, of NGC 4150, a sub-L , early-type galaxy (ETG) of around 6 × 10 M , which has been observed ...

    • Constraining stellar assembly and active galactic nucleus feedback at the peak epoch of star formation 

      Kimm, T.; Kaviraj, S.; Devriendt, J.E.G.; Dubois, Y.; Slyz, A.; Cohen, S.H.; Windhorst, R.A.; Silk, J.; Hathi, N.P.; Ryan, R.E.; O'Connell, R.W.; Dopita, M.A. (2012-09-01)
      We study stellar assembly and feedback from active galactic nuclei (AGN) around the epoch of peak star formation (1 ≲ z ≲ 2), by comparing hydrodynamic simulations to rest-frame UV-optical galaxy colours from the Wide Field ...

    • The Hubble Space Telescope wide field camera 3 early release science data : Panchromatic faint object counts for 0.2-2 μm wavelength 

      Windhorst, R.A.; Cohen, S.H.; Mechtley, M.; Rutkowski, M.J.; Hathi, N.P.; McCarthy, P.J.; Seibert, M.; Ryan, R.E.; Yan, H.; Baldry, I.K.; Driver, S.P.; Hill, D.T.; Kelvin, L.S.; Robotham, A.S.G.; Frogel, J.A.; Koekemoer, A.M.; Bond, H.E.; Bushouse, H.; MacKenty, J.W.; Mutchler, M.; Whitmore, B.C.; O'Connell, R.W.; Straughn, A.N.; Kimble, R.A.; Tuffs, R.J.; Balick, B.; Calzetti, D.; Silk, J.I.; Crockett, M.; Kaviraj, S.; Disney, M.J.; Dopita, M.A.; Hall, D.N.B.; Holtzman, J. A.; Paresce, F.; Saha, A.; Trauger, J.T.; Walker, A.R.; Young, E.T. (2011-04-01)
      We describe the Hubble Space Telescope (HST) Wide Field Camera 3 (WFC3) Early Release Science (ERS) observations in the Great Observatories Origins Deep Survey (GOODS) South field. The new WFC3 ERS data provide calibrated, ...

    • The insignificance of major mergers in driving star formation at z ≃ 2 

      Kaviraj, S.; Silk, J.; Cohen, S.; Windhorst, R.A.; Rutkowski, M.; O'Connell, R.W.; Dopita, M.A.; Dekel, A.; Hathi, N.P.; Straughn, A. (2013-02-01)
      We study the significance of major-merger-driven star formation in the early Universe, by quantifying the contribution of this process to the total star formation budget in 80 massive (M* > 1010 M) galaxies at z ≃ 2. ...

    • Newborn spheroids at high redshift : When and how did the dominant, old stars in today's massive galaxies form? 

      Kaviraj, S.; Silk, J.; Ellis, R.S.; Cohen, S.; Windhorst, R.A.; Peirani, S.; O'Connell, R.W.; Whitmore, B.C.; Ryan Jr., R.E.; Hathi, N.P.; Dopita, M.A.; Frogel, J.A.; Dekel, A. (2013-01-11)
      We study ~330 massive (M > 10M), newborn spheroidal galaxies (SGs) around the epoch of peak star formation (1 <z <3) to explore the high-redshift origin of SGs and gain insight into when and how the old stellar populations ...

    • A panchromatic catalog of early-type galaxies at intermediate redshift in the Hubble Space Telescope wide field camera 3 early release science field 

      Rutkowski, M.J.; Cohen, S.H.; Windhorst, R.A.; Kaviraj, S.; Crockett, R.M.; Silk, J.; O'Connell, R.W.; Hathi, N.P.; McCarthy, P.J.; Ryan Jr., R.E.; Koekemoer, A.; Bond, H.E.; Whitmore, B.C.; Yan, H.; Kimble, R.A.; Balick, B.; Calzetti, D.; Disney, M.J.; Dopita, M.A.; Frogel, J.A.; Hall, D.N.B.; Holtzman, J. A.; Paresce, F.; Saha, A.; Trauger, J.T.; Walker, A.R.; Young, E.T. (2012-03-01)
      In the first of a series of forthcoming publications, we present a panchromatic catalog of 102 visually selected early-type galaxies (ETGs) from observations in the Early Release Science (ERS) program with the Wide Field ...

    • Ring Structure and Warp of NGC 5907: Interaction with Dwarf Galaxies 

      Shang, Z.; Zheng, Z.; Brinks, E.; Chen, J.; Burstein, D.; Su, H.W.; Byun, Y.; Deng, L.; Deng, Z.; Fan, X.; Jiang, Z.; Li, Y.; Lin, W.; Ma, F.; Sun, W.; Wills, B.; Windhorst, R.A.; Wu, H.; Xia, X.; Xu, W.; Xue, S.; Yan, H.; Zhou, X.; Zhu, J.; Zou, Z. (1998)
      The edge-on, nearby spiral galaxy NGC 5907 has long been used as the prototype of a “noninteracting” warped galaxy. We report here the discovery of two interactions with companion dwarf galaxies that substantially change ...

    • The size evolution of passive galaxies : observations from the Wide-Field Camera 3 Early Release Science program 

      Ryan Jr., R.E.; McCarthy, P.J.; Cohen, S.H.; Rutkowski, M.J.; Mechtley, M.R.; Windhorst, R.A.; Yan, H.; Hathi, N.P.; Koekemoer, A. M.; Bond, H.E.; Bushouse, H.; MacKenty, J.; Mutchler, M.; Whitmore, B.C.; O'Connell, R.W.; Balick, B.; Calzetti, D.; Crockett, R.M.; Kaviraj, S.; Silk, J.I.; Disney, M.; Dopita, M.A.; Frogel, J.A.; Hall, D.N.B.; Holtzman, J. A.; Kimble, R.A.; Paresce, F.; Saha, A.; Trauger, J.; Walker, A.R.; Young, E. (2012-04-10)
      We present the size evolution of passively evolving galaxies at z 2 identified in Wide-Field Camera 3 imaging from the Early Release Science program. Our sample was constructed using an analog to the passive BzK galaxy ...

    • Star cluster formation and evolution in nearby starburst galaxies - I. Systematic uncertainties 

      de Grijs, R.; Fritze, U.; Anders, P.; Gallagher, J.S.; Bastian, N.; Taylor, V.A.; Windhorst, R.A. (2003)

    • Triggered star formation in the inner filament of Centaurus A 

      Crockett, R.M.; Shabala, S.S.; Kaviraj, S.; Silk, J.; Antonuccio-Delogu, V.; Mutchler, M.; Whitmore, B.C.; O'Connell, R.W.; Rejkuba, M.; Windhorst, R.A. (2012-04-01)
      We present recent Hubble Space Telescope observations of the inner filament of Centaurus A, using the new Wide Field Camera 3 (WFC3) F225W, F657N and F814W filters. We find a young stellar population near the south-west ...

    • A WFC3 study of globular clusters in NGC 4150 : An early-type minor merger 

      Kaviraj, S.; Mark Crockett, R.; Silk, J.; Whitmore, B.C.; Mutchler, M.; O'Connell, R.W.; Windhorst, R.A.; Rejkuba, M.; Yi, S.; Frogel, J.A.; Calzetti, D. (2012-05-01)
      We combine near-ultraviolet (NUV; 2250 Å) and optical (U, B, V, I) imaging from the Wide Field Camera 3 (WFC3), on-board the Hubble Space Telescope (HST), to study the globular cluster (GC) population in NGC 4150, a sub-L* ...