Access to Astronomical Catalogues

← Click to display the menu
J/AJ/140/1137       UV, VIH photometry of NGC 1311           (Eskridge+, 2010)

The young stellar population of the nearby late-type galaxy NGC 1311. Eskridge P.B., Windhorst R.A., Mager V.A., Jansen R.A. <Astron. J., 140, 1137-1149 (2010)> =2010AJ....140.1137E
ADC_Keywords: Galaxies, nearby ; Photometry, HST ; Photometry, ultraviolet ; Photometry, infrared Keywords: galaxies: individual (NGC 1311) - galaxies: spiral - galaxies: stellar content - infrared: galaxies - ultraviolet: galaxies Abstract: We have extracted point-spread-function-fitted stellar photometry from near-ultraviolet, optical, and near-infrared images, obtained with the Hubble Space Telescope, of the nearby (D∼5.5Mpc) SBm galaxy NGC 1311. The ultraviolet and optical data reveal a population of hot main-sequence (MS) stars with ages of 2-10Myr. We also find populations of blue supergiants with ages between 10 and 40Myr and red supergiants with ages between 10 and 100Myr. Description: The data for this study are a set of UV, optical, and NIR images obtained with the Wide-Field and Planetary Camera 2 (WFPC2) and NICMOS on board HST. We have WFPC2 images taken through the F300W, F606W, and F814W filters, and a NICMOS image taken with the NIC3 camera through the F160W filter. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table3.dat 211 4360 Stellar photometry in NGC 1311
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 4 I4 --- Seq Sequential star number, [EWM2010] NNNN in Simbad 6 I1 h RAh Hour of Right Ascension (J2000) 8- 9 I2 min RAm Minute of Right Ascension (J2000) 11- 17 F7.4 s RAs Second of Right Ascension (J2000) 19 A1 --- DE- Sign of the Declination (J2000) 20- 21 I2 deg DEd Degree of Declination (J2000) 23- 24 I2 arcmin DEm Arcminute of Declination (J2000) 26- 31 F6.3 arcsec DEs Arcsecond of Declination (J2000) 33- 35 A3 --- VIccd WFPC2 chip ID for F606W, F814W data (pc1, wf*) 37- 42 F6.2 pix X-VI X pixel value for F606W, F814W data 44- 49 F6.2 pix Y-VI Y pixel value for F606W, F814W data 51- 53 A3 --- UVccd WFPC2 chip ID for F300W data (wf3/4) 55- 60 F6.2 pix X-UV ? X pixel value for F300W data 62- 67 F6.2 pix Y-UV ? Y pixel value for F300 data 69- 74 F6.2 pix X-H ? X pixel value for NICMOS data 76- 81 F6.2 pix Y-H ? Y pixel value for NICMOS data 83- 88 F6.3 mag UVmag ? HST/WFPC2 F300W filter magnitude (1) 90- 94 F5.3 mag e_UVmag ? Error in UVmag (1) 96-101 F6.3 mag Vmag ? HST/WFPC2 F606W filter magnitude (1) 103-107 F5.3 mag e_Vmag ? Error in Vmag (1) 109-114 F6.3 mag Imag ? HST/WFPC2 F814W filter magnitude (1) 116-120 F5.3 mag e_Imag ? Error in Imag (1) 122-127 F6.3 mag Hmag ? HST/NICMOS F160W filter magnitude (1) 129-133 F5.3 mag e_Hmag ? Error in Hmag (1) 135-140 F6.3 mag UV-V ? The (F300W - F606W) color index (1) 142-146 F5.3 mag e_UV-V ? Error in UV-V (1) 148-153 F6.3 mag UV-I ? The (F300W - F814W) color index (1) 155-159 F5.3 mag e_UV-I ? Error in UV-I (1) 161-166 F6.3 mag UV-H ? The (F300W - F160W) color index (1) 168-172 F5.3 mag e_UV-H ? Error in UV-H (1) 174-179 F6.3 mag V-I ? The (F606W - F814W) color index (1) 181-185 F5.3 mag e_V-I ? Error in V-I (1) 187-192 F6.3 mag V-H ? The (F606W - F160W) color index (1) 194-198 F5.3 mag e_V-H ? Error in V-H (1) 200-205 F6.3 mag I-H ? The (F814W - F160W) color index (1) 207-211 F5.3 mag e_I-H ? Error in I-H (1)
Note (1): All magnitudes are calibrated to the VEGAMAG system.
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 30-Jun-2012
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

catalogue service