J/MNRAS/411/705 Spectrophotometric distances of HII regions (Moises+, 2011)
Spectrophotometric distances to Galactic H II regions.
Moises A.P., Damineli A., Figueredo E., Blum R.D., Conti P.S., Barbosa C.L.
<Mon. Not. R. Astron. Soc., 411, 705-760 (2011)>
=2011MNRAS.411..705M 2011MNRAS.411..705M
ADC_Keywords: H II regions ; Stars, distances ; Photometry, infrared
Keywords: stars: formation - H II regions - Galaxy: structure
Abstract:
We present a near-infrared study of the stellar content of 35 HII
regions in the Galactic plane, 24 of which have been classified as
giant H ii regions. We have selected these optically obscured
star-forming regions from the catalogues of Russeil (2003, Cat.
J/A+A/397/133), Conti & Crowther (2004MNRAS.355..899C 2004MNRAS.355..899C) and Bica et al.
(2003, Cat. J/A+A/404/223). In this paper, we have used the
near-infrared domain J-, H- and Ks-band colour images to visually
inspect the sample. Also, we have used colour-colour and
colour-magnitude diagrams to indicate ionizing star candidates, as
well as the presence of young stellar objects such as classical
T Tauri stars and massive young stellar objects (MYSOs). We have
obtained Spitzer Infrared Array Camera images for each region to help
further characterize them. Spitzer and near-infrared morphology were
used to place each cluster in an evolutionary phase of development.
Spitzer photometry was also used to classify the MYSOs.
Description:
The J-band (λ1.28um, δλ=0.3um), H-band (λ1.63um,
δλ=0.3um) and Ks-band (λ2.19um, δλ=0.4um)
images were obtained on the nights of 1999 May 1, 4 and 20, 2000 May
19 and 21 and 2001 July 10 and 12, at the Cerro Tololo Inter-American
Observatory (CTIO) 4-m Blanco telescope, using the facility's infrared
imager OSIRIS, which has a field of view (FOV) of 93x93arcsec2 and a
pixel scale of 0.161arcsec/pixel. On the nights of 2005 Jult 3-6 and
11 and 2006 June 3-7, we obtained images using the facility's infrared
imager ISPI (with a FOV of 10.25x10.25arcmin2 and a pixel scale of
0.3arcsec/pix), also at the 4-m Blanco telescope. Also, on the nights
of 1998 August 28 and 29, we obtained images on the CTIO 4-m telescope
using the facility's infrared imager CIRIM (with a FOV of
102x102arcsec2 and a pixel scale of 0.40arcsec/pix).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 93 65 Massive YSOs identified using the color-color
and color-magnitude diagrams and with a
counterpart in their respective Spitzer images
table3.dat 48 19 Regions with distances derived from the
trigonometric parallax
table4.dat 63 27 Spectrophotometric distances
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See also:
J/A+A/397/133 : Star-forming complexes in the Galaxy (Russeil+, 2003)
J/A+A/404/223 : 2MASS IR star clusters in the Galaxy (Bica+, 2003)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- [MDF2011] Region designation, GLLL.ll+B.bb
11 A1 --- r_[MDF2011] [abcde] Reference for the region (1)
13- 22 A10 --- Name Other name of the region, or [MDF2011]
23- 26 I4 --- Cand Candidate number,
[MDF2011] GLLL.ll+B.bb NNNN in Simbad
28- 29 I2 h RAh Right ascension (J2000)
31- 32 I2 min RAm Right ascension (J2000)
34- 38 F5.2 s RAs Right ascension (J2000)
40 A1 --- DE- Declination sign (J2000)
41- 42 I2 deg DEd Declination (J2000)
44- 45 I2 arcmin DEm Declination (J2000)
47- 51 F5.2 arcsec DEs Declination (J2000)
53- 57 F5.2 mag Ksmag MYSO Ks-band magnitude
59- 63 F5.2 mag [3.6] ? IRAC 3.6um magnitude
65 I1 --- n_[3.6] [1/3]? reason of non-detection in [3.6] (2)
67- 71 F5.2 mag [4.5] ? IRAC 4.5um magnitude
73 I1 --- n_[4.5] [1/3]? reason of non-detection in [4.5] (2)
75- 79 F5.2 mag [5.8] ? IRAC 5.8um magnitude
81 I1 --- n_[5.8] [1/3]? reason of non-detection in [5.8] (2)
83- 86 F4.2 mag [8.0] ? IRAC 8.0um magnitude
88 I1 --- n_[8.0] [1/4]? reason of non-detection in [8.0] (2)
90- 93 A4 --- Class Classificiation of the MYSO, when possible
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Note (1): References as follows:
a = Blum et al. (2001AJ....121.3149B 2001AJ....121.3149B)
b = Blum et al. (2000AJ....119.1860B 2000AJ....119.1860B
c = Blum et al. (1999AJ....117.1392B 1999AJ....117.1392B)
d = Figueredo et al. (2008AJ....136..221F 2008AJ....136..221F)
e = Figueredo et al. (2005AJ....129.1523F 2005AJ....129.1523F)
Note (2): Identification of non-detected objects code as follows:
1 = undetected object
2 = saturated object
3 = strong nebulosity obscurating the object
4 = crowded cluster
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 6 F6.2 deg GLON Galactic longitude
8- 13 F6.2 deg GLAT Galactic latitude
15- 24 A10 --- Name Name of the HII region
27- 30 F4.2 kpc Dkin Kinematic distance (1)
32- 35 F4.2 kpc Dplx Distance derived from the trigonometric parallax
37- 40 F4.2 kpc E_Dplx Error on Dplx (upper value)
42- 45 F4.2 kpc e_Dplx Error on Dplx (lower value)
47- 48 I2 --- r_Dplx References for Dplx (2)
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Note (1): Kinematic distance from From Reid et al. (2009ApJ...700..137R 2009ApJ...700..137R)
Note (2): References for the adopted distance moduli as follows:
1 = Reid et al. (2009ApJ...693..397R 2009ApJ...693..397R)
2 = Moscadelli et al. (2009ApJ...693..406M 2009ApJ...693..406M)
3 = Xu et al. (2009ApJ...693..413X 2009ApJ...693..413X)
4 = Zhang et al. (2009ApJ...693..419Z 2009ApJ...693..419Z)
5 = Brunthaler et al. (2009ApJ...693..424B 2009ApJ...693..424B)
6 = Bartkiewicz et al. (2008A&A...490..787B 2008A&A...490..787B)
7 = Moellenbrock, Claussen & Goss (2009ApJ...694..192M 2009ApJ...694..192M)
8 = Sato et al. (2008PASJ...60..975S 2008PASJ...60..975S)
9 = Xu et al. (2006Sci...311...54X 2006Sci...311...54X),
Hachisuka et al. (2006ApJ...645..337H 2006ApJ...645..337H)
10 = Hachisuka et al. (2009ApJ...696.1981H 2009ApJ...696.1981H)
11 = Honma et al. (2007PASJ...59..889H 2007PASJ...59..889H)
12 = Hirota et al. (2007PASJ...59..897H 2007PASJ...59..897H),
Menten et al. (2007A&A...474..515M 2007A&A...474..515M)
13 = Choi et al. (2008PASJ...60.1007C 2008PASJ...60.1007C)
14 = Reid et al. (2009ApJ...705.1548R 2009ApJ...705.1548R)
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 5 F5.1 deg GLON Galactic longitude
7- 10 F4.1 deg GLAT Galactic latitude
12- 21 A10 --- Name Name of the HII region
23 I1 --- r_Dist Reference for adopted distance moduli (1)
25 I1 --- Nstar Number of stars used in each region
27- 31 F5.2 kpc Dkin Kinematic distance (2)
33- 35 F3.1 kpc e_Dkin rms uncertainty on Dkin
37- 41 F5.2 kpc DM Spectrophotometric distance using the Mathis
(1990ARA&A..28...37M 1990ARA&A..28...37M) interstellar
extinction law
43- 46 F4.2 kpc e_DM rms uncertainty on DM
48- 52 F5.2 kpc DS Spectrophotometric distance using the
Stead & Hoare (2009MNRAS.400..731S 2009MNRAS.400..731S)
interstellar extinction law
54- 57 F4.2 kpc e_DS rms uncertainty on DS
59- 63 F5.2 kpc <Dspec> Average of both spectrophotometric distances
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Note (1): References for the adopted distance moduli as follows:
1 = Bik et al. (2005A&A...440..121B 2005A&A...440..121B)
2 = Blum et al. (2001AJ....121.3149B 2001AJ....121.3149B)
3 = Hanson et al. (1996, Cat. J/ApJS/107/281)
4 = Blum et al. (2000AJ....119.1860B 2000AJ....119.1860B)
5 = Blum et al. (1999AJ....117.1392B 1999AJ....117.1392B)
6 = Figueredo et al. (2008AJ....136..221F 2008AJ....136..221F)
7 = Navarete et al. (in preparation)
8 = Figueredo et al. (2005AJ....129.1523F 2005AJ....129.1523F)
Note (2): All kinematic distances are from Russeil (2003, Cat. J/A+A/397/133)
except for W31-South and W31-North with distances from
Corbel & Eikenberry (2004A&A...419..191C 2004A&A...419..191C).
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 09-Dec-2011