ACS grism spectra in the HDF-North

Details ACS grism spectra in the HDF-North ACS grism spectra in the HDF-North

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...201.4206m&link_type=abstract

American Astronomical Society, 201st AAS Meeting, #42.06; Bulletin of the American Astronomical Society, Vol. 34, p.1168

Astronomy and Astrophysics

Astronomy

Scientific paper

We present slitless spectra of sources in the Hubble Deep Field North obtained with the Advanced Camera for Surveys. The Wide Field Camera was used to obtain dithered observations with a total exposure of 6700s (3 orbits) with the G800L grism. We concentrate on objects with published redshifts obtained spectroscopically and photometrically. In addition, we use a semi-automated technique to identify sources with emission line spectra, and those with broad stellar features. Sources with emission lines having a peak S/N > 4, have a median m F775W = 24.6 ABmag. This is 1.5 mag fainter than the median m F775W of objects in the Cohen et al. (2000, ApJ, 538, 29) spectroscopic redshift survey, illustrating that the G800L is a potentially useful tool for obtaining spectroscopic data of faint compact sources. ACS was developed under NASA contract NAS 5-32865, and this research is supported by NASA grant NAG5-7697. We are grateful for an equipment grant from the Sun Microsystems, Inc.

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