J/A+A/470/161 UBV photometry of HII regions exciting stars (Russeil+, 2007)
Revised distances of Northern HII regions.
Russeil D., Adami C., Georgelin Y.M.
<Astron. Astrophys., 470, 161-171 (2007)>
=2007A&A...470..161R 2007A&A...470..161R
ADC_Keywords: H II regions ; Photometry, UBV
Keywords: Galaxy: general - Galaxy: kinematics and dynamics -
Galaxy: structure - ISM: HII regions
Abstract:
Our aim is to determine the distance of outer Galaxy star-forming
complexes in order to model the kinematic structure of our Galaxy.
We searched for exciting star(s) of HII regions, with poor or unknown
stellar distance, in the second and third galactic quadrants.
We carried out spectroscopic and photometric (when necessary)
observations in order to establish their spectral type and their U, B
and V magnitudes. From these data, complemented with literature data,
we determine the spectro-photometric distance of their associated
complexes.
Description:
U, B and V images have been obtained in 2005 (1-5 Sep.) at the 1.20-m
telescope at the Observatoire de Haute Provence (OHP, France).
The observations were carried out with the CARELEC spectrograph,
mounted at the Cassegrain focus of the 193-cm telescope of the OHP.
The observations were carried out in three runs (16-21 Sep. 1998,
26-28 Oct. 2005 and 31 Jan.-3 Feb. 2006) using two different gratings.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 83 92 Coordinates and spectral type of exciting star
candidates
table3.dat 89 47 Photometry, distance and extinction of the
exciting stars
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See also:
J/A+AS/131/319 : HII regions catalogue (Petit+ 1998)
J/A+A/417/107 : CO velocities in southern HII regions (Russeil+, 2004)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- HII HII region (G1)
13 I1 --- Star Star number within the HII region (G1)
14 A1 --- n_Star [*] Star observed with lower resolution (2)
16- 17 I2 h RAh Right ascension (J2000)
19- 20 I2 min RAm Right ascension (J2000)
22- 25 F4.1 s RAs Right ascension (J2000)
27 A1 --- DE- Declination sign (J2000)
28- 29 I2 deg DEd Declination (J2000)
31- 32 I2 arcmin DEm Declination (J2000)
34- 37 F4.1 arcsec DEs Declination (J2000)
39- 68 A30 --- SpType Spectral classification
70- 83 A14 --- OName Other name (3)
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Note (2): star observed with the lower resolution spectroscopic configuration
Note (3): ALS is acronym for Alma Luminous Star (Reed, 1998, J/ApJS/115/271).
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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- 11 A11 --- HII HII region (G1)
12 I1 --- Star Star number within the HII region (G1)
13 A1 --- n_Star [*] photometry from literature (ref. in notes)
15- 20 F6.3 mag Vmag V magnitude
22- 27 F6.4 mag B-V B-V colour index
29- 35 F7.4 mag U-B U-B colour index
37- 40 F4.2 kpc Dist ?=- Distance
42- 45 F4.2 kpc e_Dist ?=- rms uncertainty on Dist
47- 50 F4.2 mag AV ?=- Absorption in V band
52- 89 A38 --- Notes Notes
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Global notes:
Note (G1): Nomenclature note:
In Simbad, stars are identified as:
for BFSNN regions: [RAG2007] BFS NN N
for DA568 region: [RAG2007] DA 568 N
for G137.8-1.0 region: [RAG2007] G137.8-1.0 N
for SNNN regions: [RAG2007] Sh 2-NNN N
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 30-Oct-2007