J/ApJ/675/491 Lynds 988e JHKs and IRAC photometry (Allen+, 2008)
Spitzer, near-infrared, and submillimeter imaging of the relatively sparse
young cluster, Lynds 988e.
Allen T.S., Pipher J.L., Gutermuth R.A., Megeath S.T., Adams J.D.,
Herter T.L., Williams J.P., Goetz-Bixby J.A., Allen L.E., Myers P.C.
<Astrophys. J., 675, 491-506 (2008)>
=2008ApJ...675..491A 2008ApJ...675..491A
ADC_Keywords: Associations, stellar ; Stars, pre-main sequence ;
Photometry, infrared ; Photometry, millimetric/submm
Keywords: infrared: stars - stars: pre-main sequence - stars: formation
Abstract:
We present Spitzer images of the relatively sparse, low-luminosity
young cluster L988e (NAME [C86] L988 e CLUSTER in Simbad), as well
as complementary near-infrared (NIR) and submillimeter images of
the region.
Description:
NIR images in the J, H, and Ks wave bands of L988e were first obtained
by the authors on 2002 October 26 using the Simultaneous Quad Infrared
Imaging Device (SQIID), which houses four 1024x1024 InSb arrays, of
which only 512x512 are used, on the 2.1m telescope at the Kitt Peak
National Observatory, a facility of the National Optical Astronomical
Observatory.
Higher spatial resolution, deep, NIR observations in the J (1.25um),
H (1.65um), and Ks (2.15um) wave bands were obtained on 2004 July 6
with the Palomar Widefield IR Camera (WIRC), which houses a 2048x2048
HgCdTe array.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 152 19 *Objects with Mid-Infrared Excesses: Class I
table3.dat 153 74 *Objects with Mid-Infrared Excesses: Class II
table4.dat 152 7 *Objects with Mid-Infrared Excesses: Transition disks
table5.dat 153 20 *Objects without Mid-Infrared Excesses: Class III
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Note on table*.dat: Extragalactic Contaminants Removed.
Sources identified as [APG2008] JHHMMSS.ss+DDMMSS.ss in Simbad.
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See also:
J/AJ/131/1530 : Hα emission stars in LDN988 (Herbig+, 2006)
Byte-by-byte Description of file: table?.dat
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Bytes Format Units Label Explanations
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1- 2 I2 h RAh Right ascension (J2000.0)
4- 5 I2 min RAm Right ascension (J2000.0)
7- 11 F5.2 s RAs Right ascension (J2000.0)
13- 16 F4.2 s e_RAs rms uncertainty on RA
18 A1 --- DE- Declination sign (J2000.0)
19- 20 I2 deg DEd Declination (J2000.0)
22- 23 I2 arcmin DEm Declination (J2000.0)
25- 29 F5.2 arcsec DEs Declination (J2000.0)
31- 34 F4.2 arcsec e_DEs rms uncertainty on DE
36- 40 F5.2 mag Jmag ? Dereddened J magnitude (1)
42- 47 F6.3 mag e_Jmag ? rms uncertainty on Jmag
49- 53 F5.2 mag Hmag ? Dereddened H magnitude (1)
55- 59 F5.3 mag e_Hmag ? rms uncertainty on Hmag
61- 65 F5.2 mag Ksmag ? Dereddened Ks magnitude (1)
67- 71 F5.3 mag e_Ksmag ? rms uncertainty on Ksmag
73- 77 F5.2 mag [3.6] ? Dereddened 3.6 magnitude (1)
79- 83 F5.3 mag e_[3.6] ? rms uncertainty on [3.6]
85- 89 F5.2 mag [4.5] ? Dereddened 4.5um magnitude (1)
91- 95 F5.3 mag e_[4.5] ? rms uncertainty on [4.5]
97-101 F5.2 mag [5.8] ? Dereddened 5.8um magnitude (1)
103-107 F5.3 mag e_[5.8] ? rms uncertainty on [5.8]
109-113 F5.2 mag [8.0] ? Dereddened 8.0um magnitude (1)
115-119 F5.3 mag e_[8.0] ? rms uncertainty on [8.0]
121-124 F4.2 mag [24] ? Dereddened 24um magnitude (1)
126-130 F5.3 mag e_[24] ? rms uncertainty on [24]
132-135 F4.2 mag AKs ? Absoption in Ks band (2)
137-142 F6.3 --- alpha ? Slope α determined from IRAC photometry
143 A1 --- n_alpha [gf] how α is computed (3)
145-147 I3 --- IfAHA ? Herbig & Dahm (2006, Cat. J/AJ/131/1530) ID
149-153 F5.1 0.1nm EWHa ? Halpha equivalent width (4)
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Note (1): Magnitudes are dereddened when extinction value AKs quoted.
Note (2): AKs determined from method outlined in Sect.5.
Note (3): Notes as follows:
f = Slope alpha determined from [4.5] to [24] photometry.
g = Slope alpha determined from [3.6], [5.8] and [24] photometry.
Note (4): from Herbig & Dahm (2006, Cat. J/AJ/131/1530).
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 04-Jul-2010