J/MNRAS/379/1237 VIcJHK photometry of NGC 1893 Halpha sources (Maheswar+, 2007)
Champagne flow and triggered star formation in NGC 1893. Maheswar G., Sharma S., Biman J.M., Pandey A.K., Bhatt H.C. <Mon. Not. R. Astron. Soc., 379, 1237-1247 (2007)> =2007MNRAS.379.1237M
ADC_Keywords: H II regions ; Photometry, infrared Keywords: stars: formation - stars: pre-main-sequence - ISM: globules - HII regions Abstract: Using Hα grism spectroscopy and optical and Two-Micron All-Sky Survey photometry of the fields containing NGC 1893 and two emission nebulae, Sim 129 and Sim 130, we show the presence of a number of Hα and near-infrared excess sources towards the region between HD 242935 and the two emission nebulae. Among them a large majority of these pre-main-sequence candidate sources are concentrated towards regions closer to Sim 129 and Sim 130. Description: The optical CCD UBV(RI)c photometry of the field containing NGC 1893 was carried out to study the cluster properties (like distance, age, extinction, reddening law, etc., Paper II, Saurabh et al., in prep.). The data were obtained on 2005 January 6 using the 2048x2048 pixel CCD camera mounted on the f/13 Cassegrain focus of the 104-cm Sampurnanand telescope of ARIES, Nainital. An Hα emission survey of the field containing Sim 129, Sim 130 was conducted on 2005 January 25 using Hanle Faint Object Spectrograph Camera (HFOSC) at the f/9 Cassegrain focus of Himalayan Chandra Telescope (HCT) at Hanle, India. The NIR JHKs magnitudes of the stars within a circle of radius 30' about IRAS 05198+3325 were obtained from 2MASS catalogue (Cutri et al., 2003, Cat. II/246). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 60 49 *Our optical and 2MASS NIR results for the 49 sources are presented.
Note on table1.dat: The Hα sources detected in our slitless spectroscopy are identified. CPM 16 and S1R2N35 are not included here.
See also: II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 2 I2 --- [MSB2007] Sequential number 3 A1 --- n_[MSB2007] [a] a for Hα sources detected in our slitless spectroscopy 5- 8 F4.2 arcmin r Angular separation from IRAS 05198+3325 10- 16 F7.4 deg RAdeg Right ascension in decimal degrees (J2000) 19- 25 F7.4 deg DEdeg Declination in decimal degrees (J2000) 27- 31 F5.2 mag Vmag V magnitude 33- 36 F4.2 mag V-Ic V-Ic colour index 38- 42 F5.2 mag Jmag 2MASS J magnitude 44- 47 F4.2 mag J-H 2MASS J-H colour index 49- 52 F4.2 mag H-K 2MASS H-K colour index 54- 60 A7 --- ID Halpha sources identified by Marco & Negueruela (2002A&A...393..195M) (1)
Note (1): Simbad denominations for Halpha sources identified as follows: S1R2N23 = Cl* NGC 1893 CUF 1223 S1R2N38 = Cl* NGC 1893 CUF 1238 E 18 = Cl* NGC 1893 NMI E18 E 13 = Cl* NGC 1893 NMI E13
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 06-Dec-2007
|The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line|