J/AJ/133/1528 Infrared nebulae around young stellar objects (Connelley+, 2007)
Infrared nebulae around young stellar objects.
Connelley M.S., Reipurth B., Tokunaga A.T.
<Astron. J., 133, 1528-1559 (2007)>
=2007AJ....133.1528C 2007AJ....133.1528C
ADC_Keywords: Infrared sources ; Nebulae ; Photometry, infrared
Keywords: atlases; infrared: ISM - reflection nebulae - stars: formation
Abstract:
We present a K-band atlas of 106 reflection nebulae, 41 of which are
new discoveries. We observed these nebulae with the University of
Hawaii 2.2m telescope in the course of an imaging survey of 197
objects that were selected as nearby young Class I sources. K-band
images and flux-calibrated surface brightness contour plots of each
nebula are presented.
Description:
Our K-band observations of the reflection nebulae were conducted with
QUIRC, the 1024x1024 HgCdTe facility near-IR camera on the University
of Hawaii 2.2m telescope on Mauna Kea. All observations were made
through the Mauna Kea Observatories (MKO) Data were taken from 2003
January to September.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 171 109 Source Characteristics
zeropt.dat 54 108 K-band magnitude zero point for the images
fig/* . 108 FITS images in K-band
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See also:
VII/21 : Catalogue of Reflection Nebulae (Van den Bergh, 1966)
J/A+A/399/141 : Merged catalogue of reflection nebulae (Magakian, 2003)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- IRAS IRAS identification (HHMMm+DDMMA)
13- 44 A32 --- Assoc Associations identification(s)
46- 49 I4 pc Dist ? Estimated distance
51 A1 --- f_Dist [n] Distance estimate could not be found
53- 54 I2 --- r_Dist ? Reference for Dist (2)
56- 65 F10.4 solLum Lbol ? Bolometric luminosity
67- 68 I2 h RAh ? 2MASS Hour of Right Ascension (J2000)
70- 71 I2 min RAm ? 2MASS Minute of Right Ascension (J2000)
73- 77 F5.2 s RAs ? 2MASS Second of Right Ascension (J2000)
79 A1 --- DE- Sign of the 2MASS Declination (J2000)
80- 81 I2 deg DEd ? 2MASS Degree of Declination (J2000)
83- 84 I2 arcmin DEm ? 2MASS Arcminute of Declination (J2000)
86- 89 F4.1 arcsec DEs ? 2MASS Arcsecond of Declination (J2000)
91- 96 F6.3 mag Jmag ? 2MASS J band magnitude (3)
98-103 F6.3 mag Hmag ? 2MASS H band magnitude (3)
105-110 F6.3 mag Kmag ? 2MASS Ks band magnitude (3)
112-116 F5.2 --- alpha ? Source spectral index
118-123 F6.2 arcsec Size ? Square root of the area within the
K=19mag/arcsec2 surface brightness contour
125 A1 --- f_Size [*] stellar image dominates (4)
127-148 A22 --- File Name of the FITS image file in
fig subdirectory
150-171 A22 --- File2 Name of the FITS second image file in
fig subdirectory
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Note (2): References as follows:
1 = Hilton & Lahulla (1995, Cat. J/A+AS/113/325)
2 = Educated guess based on proximity to nearby objects;
3 = Reipurth, A General Catalog of HH Objects, 1999, Cat. V/104
(http:casa.colorado.edu/hhcat/)
4 = Wouterloot & Brand (1989, Cat. J/A+AS/80/149)
5 = Obayashi et al. (1998AJ....115..274O 1998AJ....115..274O)
6 = Launhardt & Henning (1997A&A...326..329L 1997A&A...326..329L)
7 = Andre et al. (1999ApJ...513L..57A 1999ApJ...513L..57A)
8 = Kun et al. (2001PASJ...53.1063K 2001PASJ...53.1063K)
9 = Mookerjea et al. (2000AJ....120.1954M 2000AJ....120.1954M)
10 = Yun et al. (2001A&A...372L..33Y 2001A&A...372L..33Y)
11 = Sagar et al. (1983MNRAS.205..747S 1983MNRAS.205..747S)
12 = Moreira et al. (2000AJ....119.2960M 2000AJ....119.2960M)
13 = Marraco & Rydgren (1981AJ.....86...62M 1981AJ.....86...62M)
14 = Guetter (1992AJ....103..197G 1992AJ....103..197G)
15 = Straizys et al. (1992BaltA...1..149S 1992BaltA...1..149S)
16 = Battinelli & Capuzzo-Dolcetta (1991MNRAS.249...76B 1991MNRAS.249...76B)
17 = Reipurth & Aspin (1997AJ....114.2700R 1997AJ....114.2700R)
Note (3): The magnitudes are in the 2MASS photometric system. When
available, the magnitudes are from the 2MASS extended source catalog
(2MASX, Cat. VII/233); or from the 2MASS point-source catalog
(2MASS-PSC, Cat. II/246).
Note (4): the asterisk (*) means that, for this source, the stellar image
dominates the measured size
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Description of file: zeropt.dat
This table accompanies the FITS data used in this paper. The table
lists the name of the target, the K-band magnitude zero point for the
image, and the RA and Dec coordinates of the center of the field of
view (pixel [512,512]). These values are based on the photometry and
astrometry of stars in the field that were detected by 2MASS.
Typically, 3 to 4 stars were used. The RA and Dec coordinates of these
stars, as well as their pixel coordinates in the image, were used to
calculate the sky coordinates of each image. The H and Ks magnitudes
of these stars were used to calculate the MKO K-band magnitude of
these stars. The MKO K-band magnitudes and their fluxes in the images
(determined through conventional aperture photometry) were used to
calculate the K-band magnitude zero points using this equation:
K0 = KMKO + 2.5log(F)
where K0 is the K-band magnitude zero point and F is the flux in
ADUs determined by the aperture photometry. The magnitude zero points
for the stars in each field were averaged to derive the best estimate
of the image's K-band magnitude zero point.
Byte-by-byte Description of file: zeropt.dat
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Bytes Format Units Label Explanations
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3- 13 A11 --- IRAS Target name (HHMMm+DDMM)
15- 21 F7.4 mag Kmag ? Zero-point K magnitude
24- 25 I2 h RAh ? Right ascension (J2000) (1)
27- 28 I2 min RAm ? Right ascension (J2000) (1)
30- 34 F5.2 s RAs ? Right ascension (J2000) (1)
36 A1 --- DE- Declination sign (J2000) (1)
37- 38 I2 deg DEd ? Declination (J2000) (1)
40- 41 I2 arcmin DEm ? Declination (J2000) (1)
43- 46 F4.1 arcsec DEs ? Declination (J2000) (1)
47- 54 A8 --- Note Note
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Note (1): Coordinates of the center of the field of view (pixel [512,512]).
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 18-Feb-2009