J/PASJ/64/107 Multiwavelength study of NGC 281 complex (Sharma+, 2012)
Multiwavelength study of NGC 281 region.
Sharma S., Pandey A.K., Pandey J.C., Chauhan N., Ogura K., Ojha D.K.,
Borrissova J., Mito H., Verdugo T., Bhatt B.C.
<Publ. Astron. Soc. Jap., 64, 107 (2012)>
=2012PASJ...64..107S 2012PASJ...64..107S
ADC_Keywords: Clusters, open ; X-ray sources ; Photometry, UBVRI ;
Photometry, infrared
Keywords: Galaxy: open clusters and associations: individual (IC 1590) -
stars: formation - stars: luminosity function, mass function -
stars: pre-main-sequence
Abstract:
We present a multiwavelength study of the NGC 281 complex, which
contains the young cluster IC 1590 at the center, using deep
wide-field optical UBVIc photometry, slitless spectroscopy
along with archival data sets in the near-infrared (NIR) and X-ray
regions.
Description:
The CCD UBVIc observations of the NGC 281 region were obtained by
using the 105-cm Schmidt telescope of the Kiso Observatory, Japan on
2004 November 21 and 2005 November 27.
We observed the NGC 281 region in the slitless mode with a grism as
the dispersing element using the Himalayan Faint Object Spectrograph
Camera (HFOSC) instrument during two observing runs on 2005 October 10
and 2006 August 16.
Chandra observed the NGC 281 region on three occasions for 62.6ks
(Obs ID 5424, on 2005-11-10 @ 18:19:27 UT), 23.5ks (Obs ID 7206,
2005-11-08 @ 13:41:46 UT) and 13.1ks (Obs ID 7205 @ 22:40:54 UT).
We analyzed the data reprocessed by the Chandra X-Ray Center on 2006
April 5 (ASCDSVER 7.6.7.1).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 78 354 Optical, 2MASS, and IRAC counterparts of the X-ray
sources searched within a match radius of 1"
table5.dat 79 347 2MASS, optical and X-ray counterparts of the
IRAC sources searched within a match radius of 1"
table7.dat 101 267 YSOs identified on the basis of Hα emission,
NIR/MIR color-magnitude diagrams, and X-ray emission
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See also:
B/chandra : The Chandra Archive Log (CXC, 1999-2012)
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 5 F5.2 arcmin Dist Radial distance from cluster centre (G1)
7- 8 I2 h RAh Right ascension (J2000)
10- 11 I2 min RAm Right ascension (J2000)
13- 17 F5.2 s RAs Right ascension (J2000)
19 A1 --- DE- Declination sign (J2000)
20- 21 I2 deg DEd Declination (J2000)
23- 24 I2 arcmin DEm Declination (J2000)
26- 29 F4.1 arcsec DEs [0/60] Declination (J2000)
31- 36 F6.3 mag Vmag ?=- V magnitude
38- 43 F6.3 mag V-Ic ?=- V-Ic colour index
45- 50 F6.3 mag Jmag ?=- 2MASS J magnitude
52- 57 F6.3 mag Hmag ?=- 2MASS H magnitude
59- 64 F6.3 mag Ksmag ?=- 2MASS Ks magnitude
66- 71 F6.3 mag [3.6] ?=- Spitzer/IRAC 3.6um magnitude
73- 78 F6.3 mag [4.5] ?=- Spitzer/IRAC 4.5um magnitude
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 5 F5.2 arcmin Dist Radial distance from cluster center (G1)
7- 8 I2 h RAh Right ascension (J2000)
10- 11 I2 min RAm Right ascension (J2000)
13- 17 F5.2 s RAs Right ascension (J2000)
19 A1 --- DE- Declination sign (J2000)
20- 21 I2 deg DEd Declination (J2000)
23- 24 I2 arcmin DEm Declination (J2000)
26- 29 F4.1 arcsec DEs [0/60] Declination (J2000)
31- 36 F6.3 mag [3.6] ?=- Spitzer/IRAC 3.6um magnitude
38- 43 F6.3 mag [4.5] ?=- Spitzer/IRAC 4.5um magnitude
45- 50 F6.3 mag Jmag ?=- 2MASS J magnitude
52- 57 F6.3 mag Hmag ?=- 2MASS H magnitude
59- 64 F6.3 mag Ksmag ?=- 2MASS Ks magnitude
66- 71 F6.3 mag V-Ic ?=- V-Ic colour index
73- 77 F5.3 mag Vmag ?=- V magnitude
79 A1 --- X-ray [Y/N] X-ray counterpart ?
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Byte-by-byte Description of file: table7.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- ID Sequential number
5- 9 F5.2 arcmin Dist Radial distance from the cluster center (G1)
11- 12 I2 h RAh Right ascension (J2000)
14- 15 I2 min RAm Right ascension (J2000)
17- 21 F5.2 s RAs Right ascension (J2000)
23 A1 --- DE- Declination sign (J2000)
24- 25 I2 deg DEd Declination (J2000)
27- 28 I2 arcmin DEm Declination (J2000)
30- 33 F4.1 arcsec DEs [0/60] Declination (J2000)
35- 40 F6.3 mag Vmag ?=- V magnitude
42- 46 F5.3 mag V-Ic ?=- V-Ic colour index
48- 53 F6.3 mag Jmag ?=- 2MASS J magnitude
55- 60 F6.3 mag Hmag ?=- 2MASS H magnitude
62- 67 F6.3 mag Ksmag ?=- 2MASS Ks magnitude
69- 74 F6.3 mag [3.6] ?=- Spitzer/IRAC 3.6um magnitude
76- 81 F6.3 mag [4.5] ?=- Spitzer/IRAC 4.5um magnitude
83- 88 F6.3 mag [5.8] ?=- Spitzer/IRAC 5.8um magnitude
90- 95 F6.3 mag [8.0] ?=- Spitzer/IRAC 8.0um magnitude
97-101 A5 --- Rem Remarks (1)
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Note (1): Remarks as follows:
1 = CTTS (classical T Tau star)
2 = WTTS (weak T Tau star)
3 = X-ray source
4 = Hα emission
5 = Class0/I Young Stellar Object
6 = ClassII Young Stellar Object
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Global notes:
Note (G1): The cluster center is assumed to be at position (J2000):
00:52:39.5+56:37:46 (±0.1s,15")
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 08-Feb-2013