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| Paper: |
Insights from WISP, an Unbiased Search for Distant Emission-line Galaxies |
| Volume: |
477, Galaxy Mergers in an Evolving Universe |
| Page: |
255 |
| Authors: |
Malkan, M.; WISP Team |
| Abstract: |
The search for true physical pairs of galaxies at high redshifts has been greatly hindered by the difficulty of obtaining good
spectroscopic redshifts.
Multi-object near-infrared spectroscopy is especially effective, since
it reaches the strongest rest-frame spectral features,
especially emission lines. From ground-based
telescopes, this is still very difficult to obtain for faint galaxies.
However, the near-IR grism spectrographs on Hubble
Space Telescope are ideal for a large, unbiased survey
for galaxy groups and pairs. Without any pre-selection
based on continuum properties, slitless spectroscopic surveys
are extremely effective at uncovering large numbers of extreme
dwarf galaxies, with very high specific star formation rates,
and very low metallicities. We discuss preliminary
results on pairs and other properties of galaxies
found in the most ambitious of these surveys, the
WFC-3 Infrared Spectroscopic Parallels (WISP). |
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