J/ApJ/695/1591 Spectrophotometry in PEARS fields (Pirzkal+, 2009)
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 2009ApJ...695.1591P
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
z850=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 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).
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 85 51 M0 and later stars in PEARS-N with z850<25
table2.dat 85 63 M0 and later stars in PEARS-S with z850<25
--------------------------------------------------------------------------------
See also:
B/hst : HST Archived Exposures Catalog (STScI, 2007)
II/261 : GOODS initial results (Giavalisco+, 2004)
J/AJ/135/1624 : PEARS emission-line galaxies (Straughn+, 2008)
J/AJ/132/1729 : Hubble Ultra Deep Field BVI-dropout sources (Beckwith+, 2006)
http://archive.stsci.edu/prepds/goods/ : HST/ACS GOODS data online access
Byte-by-byte Description of file: table1.dat table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 A7 --- [PBM2009] Star identification
9- 21 F13.9 deg RAdeg Right ascension in decimal degrees (J2000)
23- 35 F13.9 deg DEdeg Declination in decimal degrees (J2000)
37- 41 F5.2 mag zmag HST/ACS F850LP (z850) magnitude (1)
43- 47 F5.3 mag e_zmag mag uncertainty
49- 52 F4.2 mag B-V ? HST/ACS (B-V) color index (435-606um)
54- 58 F5.3 mag e_B-V ? B-V uncertainty
60- 63 F4.2 mag V-i HST/ACS (V-i) color index (606-775um)
65- 69 F5.3 mag e_V-i V-i uncertainty
71- 74 F4.2 mag i-z HST/ACS (i-z) color index (775-850um)
76- 80 F5.3 mag e_i-z i-z uncertainty
82- 85 A4 --- SpT MK spectral type
--------------------------------------------------------------------------------
Note (1): the printed paper indicates a blue magnitude (F435W) for table1,
but both tables do give the z850 magnitude
--------------------------------------------------------------------------------
History:
From electronic version of the journal
References:
Pirzkal et al. Paper I. 2005ApJ...622..319P 2005ApJ...622..319P
History:
* 29-Apr-2011: original version
* 26-Sep-2011: correction in the description of the table, both tables
giving the z-band magnitude (see the "Note (1)" section above)
(End) Emmanuelle Perret [CDS] 29-Apr-2011