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J/ApJ/695/1591 Spectrophotometry in PEARS fields (Pirzkal+, 2009)
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Beginning of ReadMe :J/ApJ/695/1591 Spectrophotometry in PEARS fields (Pirzkal+, 2009)
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Spectrophotometrically identified stars in the PEARS-N and PEARS-S fields.
Pirzkal N., Burgasser A.J., Malhotra S., Holwerda B.W., Sahu K.C.,
Rhoads J.E., Xu C., Bochanski J.J., Walsh J.R., Windhorst R.A., Hathi N.P.,
Cohen S.H.
<Astrophys. J., 695, 1591-1603 (2009)>
=2009ApJ...695.1591P
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ADC_Keywords: Stars, late-type ; Spectral types ; Photometry, HST ; Surveys
Keywords: Galaxy: disk - Galaxy: halo - Galaxy: stellar content -
Galaxy: structure - stars: late-type
Abstract:
Deep ACS slitless grism observations and identification of stellar
sources are presented within the Great Observatories Origins Deep
Survey North and South fields which were obtained in the Probing
Evolution And Reionization Spectroscopically (PEARS) program. It is
demonstrated that even low-resolution spectra can be a very powerful
means of identifying stars in the field, especially low-mass stars
with stellar types M0 and later. The PEARS fields lay within the
larger GOODS fields, and we used new, deeper images to further refine
the selection of stars in the PEARS field, down to a magnitude of
z_850_=25 using a newly developed stellarity parameter. The total
number of stars with reliable spectroscopic and morphological
identification was 95 and 108 in the north and south fields,
respectively.
Description:
PEARS observations were obtained as part of a large Hubble Space
Telescope (HST) proposal (200 orbits, Proposal 10530, P.I.: Malhotra)
that was closely modeled after the previously very successful GRAPES
(Pirzkal et al. 2004ApJS..154..501P) observations of the much smaller
subset of the GOODS-S field: the HUDF (Beckwith et al. 2006, Cat.
J/AJ/132/1729).