J/A+A/431/779 Optical/near-IR atlas of OH/IR stars (Jimenez-Esteban+, 2005)
An infrared study of galactic OH/IR stars.
I. An optical/near-IR atlas of the Arecibo sample.
Jimenez-Esteban F.M., Agudo-Merida L., Engels D., Garcia-Lario P.
<Astron. Astrophys. 431, 779 (2005)>
=2005A&A...431..779J 2005A&A...431..779J
ADC_Keywords: Infrared sources ; Stars, variable ; Photometry, infrared
Keywords: stars: OH/IR - stars: AGB and post-AGB - stars: circumstellar matter -
stars: variable: general - stars: evolution - infrared: stars
Abstract:
In this paper we present optical and near-infrared finding charts,
accurate astrometry (∼1") and single-epoch near-infrared photometry
for 371 IRAS sources, 96% of those included in the so-called "Arecibo
sample of OH/IR stars" (Eder et al., 1988ApJS...66..183E 1988ApJS...66..183E; Lewis et
al., 1990ApJ...362..634L 1990ApJ...362..634L; Chengalur et al., 1993,
Cat. J/ApJS/89/189). The main photometric properties of the stars in
the sample are presented and discussed as well as the problems found
during the process of identification of the optical/near-infrared
counterparts. In addition, we also identify suitable reference stars
in each field to be used for differential photometry purposes in the
future.
Description:
The infrared observations under discussion here were performed during
20 nights in July 1999 and July 2000 at Calar Alto Observatory
(Almera, Spain) using the 1.23m telescope equipped with the infrared
camera MAGIC.
TableA1 contains the new improved coordinates. It also contains the
relative distance from the optical/near-infrared counterpart found to
the original IRAS coordinates. When available, the distance of the
associated MSX and VLA counterparts to the IRAS position is also
provided for comparison.
TableA2 contains the near infrared magnitudes (or lower magnitude
limits) derived for the Arecibo OH/IR stars observed.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 73 363 Astrometric information derived for the sources
for which an optical/NIR counterpart was found.
tablea2.dat 64 368 Calar Alto photometry of the 368 Arecibo OH/IR
stars measured.
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See also:
II/125 : IRAS catalogue of Point Sources, Version 2.0 (IPAC 1986)
V/114 : MSX6C Infrared Point Source Catalog (Egan+ 2003)
J/AJ/127/501 : 2MASS counterparts for OH/IR stars (Lewis+, 2004)
J/ApJS/109/489 : OH observations of Arecibo OH/IR stars (Lewis 1997)
Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- IRAS IRAS name
13- 14 I2 h RAh Improved right ascension (J2000)
16- 17 I2 min RAm Improved right ascension (J2000)
19- 22 F4.1 s RAs Improved right ascension (J2000)
24 A1 --- DE- Improved declination sign (J2000)
25- 26 I2 deg DEd Improved declination (J2000)
28- 29 I2 arcmin DEm Improved declination (J2000)
31- 32 I2 arcsec DEs Improved declination (J2000)
34- 36 I3 arcsec oRA(CA-IRAS) ? Distance Calar Alto/IRAS (RA)
38- 40 I3 arcsec oDE(CA-IRAS) ? Distance Calar Alto/IRAS (DE)
42- 44 I3 arcsec oRA(MSX-IRAS) ? Distance MSX/IRAS (RA)
46- 48 I3 arcsec oDE(MSX-IRAS) ? Distance MSX/IRAS (DE)
50- 52 I3 arcsec oRA(VLA-IRAS) ? Distance VLA/IRAS (RA)
54- 56 I3 arcsec oDE(VLA-IRAS) ? Distance VLA/IRAS (DE)
58- 73 A16 --- MSX6C_G MSX6C_G name (MSX6C GLLL.llll+BB.bbbb),
Cat. V/114
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Byte-by-byte Description of file: tablea2.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- IRAS IRAS name
13- 19 I7 d HJD Observation heliocentric Julian day
22 A1 --- l_Jmag Upper or lower limit indicator
23- 27 F5.2 mag Jmag J magnitude
30- 33 F4.2 mag e_Jmag ? J magnitude uncertainty
36 A1 --- l_Hmag Upper or lower limit indicator
37- 41 F5.2 mag Hmag ? H magnitude
44- 47 F4.2 mag e_Hmag ? H magnitude uncertainty
48- 49 A2 --- n_Hmag [NO ] NO: Not observed
51 A1 --- l_Kmag Upper or lower limit indicator
52- 56 F5.2 mag Kmag ? K magnitude
59- 62 F4.2 mag e_Kmag ? K magnitude uncertainty
63- 64 A2 --- n_Kmag [NO ] NO: Not observed
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Acknowledgements:
Francisco Jimenez-Esteban, Francisco.Jimenez-Esteban(at)hs.uni-hamburg.de
(End) Patricia Vannier [CDS] 05-Nov-2004