Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Borch, Andrea"'
Autor:
Vika, Marina, Bamford, Steven P., Haeussler, Boris, Rojas, Alex L., Borch, Andrea, Nichol, Robert C.
We demonstrate a new multi-wavelength technique for two-dimensional parametric modelling of galaxy surface-brightness profiles, which we have incorporated into the widely used software GALFIT. Our new method, named GALFITM, extends GALFIT3's current
Externí odkaz:
http://arxiv.org/abs/1307.4996
Autor:
Jogee, Shardha, Miller, Sarah H., Penner, Kyle, Skelton, Rosalind E., Conselice, Christopher J., Somerville, Rachel S., Bell, Eric F., Zheng, Xian Zhong, Rix, Hans-Walter, Robaina, Aday R., Barazza, Fabio D., Barden, Marco, Borch, Andrea, Beckwith, Steven V. W., Caldwell, John A. R., Peng, Chien Y., Heymans, Catherine, McIntosh, Daniel H., Haussler, Boris, Jahnke, Knud, Meisenheimer, Klaus, Sanchez, Sebastian F., Wisotzki, Lutz, Wolf, Christian, Papovich, Casey
Publikováno v:
Astrophys.J.697:1971-1992,2009
We perform a comprehensive estimate of the frequency of galaxy mergers and their impact on star formation over z~0.24--0.80 (lookback time T_b~3--7 Gyr) using 3698 (M*>=1e9 Msun) galaxies with GEMS HST, COMBO-17, and Spitzer data. Our results are: (1
Externí odkaz:
http://arxiv.org/abs/0903.3700
N-body simulations give us a rough idea of how the shape of a simulated object appears in three-dimensional space. From an observational point of view this may give us a misleading picture. The faint stars may be the most common stars in the system b
Externí odkaz:
http://arxiv.org/abs/0704.3915
Autor:
Bell, Eric F., Zheng, Xian Zhong, Papovich, Casey, Borch, Andrea, Wolf, Christian, Meisenheimer, Klaus
Publikováno v:
Astrophys.J.663:834-843,2007
Recent observations have demonstrated a significant growth in the integrated stellar mass of the red sequence since z=1, dominated by a steadily increasing number of galaxies with stellar masses M* < 10^11 M_sun. In this paper, we use the COMBO-17 ph
Externí odkaz:
http://arxiv.org/abs/0704.3077
Autor:
Häußler, Boris, McIntosh, Daniel H., Barden, Marco, Bell, Eric F., Rix, Hans-Walter, Borch, Andrea, Beckwith, Steven V. W., Caldwell, John A. R., Heymans, Catherine, Jahnke, Knud, Jogee, Shardha, Koposov, Sergey E., Meisenheimer, Klaus, Sánchez, Sebastian F., Somerville, Rachel S., Wisotzki, Lutz, Wolf, Christian
In the context of measuring structure and morphology of intermediate redshift galaxies with recent HST/ACS surveys, we tune, test, and compare two widely used fitting codes (GALFIT and GIM2D) for fitting single-component Sersic models to the light pr
Externí odkaz:
http://arxiv.org/abs/0704.2601
Autor:
Somerville, Rachel S., Barden, Marco, Rix, Hans-Walter, Bell, Eric F., Beckwith, Steven V. W., Borch, Andrea, Caldwell, John A. R., Haeussler, Boris, Heymans, Catherine, Jahnke, Knud, Jogee, Shardha, McIntosh, Daniel H., Meisenheimer, Klaus, Peng, Chien Y., Sanchez, Sebastian F., Wisotzki, Lutz, Wolf, Christian
Surveys of distant galaxies with the Hubble Space Telescope and from the ground have shown that there is only mild evolution in the relationship between radial size and stellar mass for galactic disks from z~1 to the present day. Using a sample of ne
Externí odkaz:
http://arxiv.org/abs/astro-ph/0612428
Autor:
Heymans, Catherine, Bell, Eric F., Rix, Hans-Walter, Barden, Marco, Borch, Andrea, Caldwell, John A. R., McIntosh, Daniel H., Meisenheimer, Klaus, Peng, Chien Y., Wolf, Christian, Beckwith, Steven V. W., Haeussler, Boris, Jahnke, Knud, Jogee, Shardha, Sanchez, Sebastian F., Somerville, Rachel, Wisotzki, Lutz
Publikováno v:
Mon.Not.Roy.Astron.Soc.Lett. 371 (2006) L60-L64
We present constraints on the evolution of the virial to stellar mass ratio of galaxies with high stellar masses in the redshift range 0.2
Externí odkaz:
http://arxiv.org/abs/astro-ph/0606418
Autor:
Borch, Andrea, Meisenheimer, Klaus, Bell, Eric F., Rix, Hans-Walter, Wolf, Christian, Dye, Simon, Kleinheinrich, Martina, Kovacs, Zoltan, Wisotzki, Lutz
We present an analysis of stellar mass estimates for a sample of 25000 galaxies from the COMBO-17 survey over the interval 0.2
Externí odkaz:
http://arxiv.org/abs/astro-ph/0604405
Autor:
Bell, Eric F., Phleps, Stefanie, Somerville, Rachel S., Wolf, Christian, Borch, Andrea, Meisenheimer, Klaus
Publikováno v:
Astrophys.J.652:270-276,2006
We calculate the projected two point correlation function for samples of luminous and massive galaxies in the COMBO-17 photometric redshift survey, focusing particularly on the amplitude of the correlation function at small projected radii and explor
Externí odkaz:
http://arxiv.org/abs/astro-ph/0602038