Access to Astronomical Catalogues

← Click to display the menu
J/AJ/139/1066       X-ray view of NGC 2403 central region    (Yukita+, 2010)

An X-ray view of star formation in the central 3 kpc of NGC 2403. Yukita M., Swartz D.A., Tennant A.F., Soria R. <Astron. J., 139, 1066-1088 (2010)> =2010AJ....139.1066Y
ADC_Keywords: Galaxies, nearby; X-ray sources; Supernova remnants; H II regions; Photometry, ultraviolet ; Photometry, millimetric/submm Keywords: galaxies: evolution - galaxies: individual (NGC 2403) - galaxies: nuclei - X-rays: galaxies Abstract: Archival Chandra observations are used to study the X-ray emission associated with star formation in the central region of the nearby SAB(s)cd galaxy NGC 2403. The distribution of X-ray emission is compared to the morphology visible at other wavelengths using complementary Spitzer, Galaxy Evolution Explorer, and ground-based Hα imagery. Description: NGC 2403 was observed in full-frame mode with Chandra ACIS-S on four occasions for a total of ∼180ks, on 2001 Apr 17, 2004 Aug 13, Oct 03 and Dec 22. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 56 58 X-ray point sources table5.dat 56 24 Supernova remnants (SNRs) table7.dat 56 47 HII regions table9.dat 96 19 Luminosities and sizes of 19 star-forming regions table10.dat 67 19 Derived values of 19 star-forming regions
See also: J/A+AS/125/293 : NGC 2366, NGC 2403 + NGC 4236 HK' photometry (Pierini+ 1997) Byte-by-byte Description of file: table2.dat table5.dat table7.dat
Bytes Format Units Label Explanations
1- 2 I2 h RAh Right ascension (J2000) 4- 5 I2 min RAm Right ascension (J2000) 7- 10 F4.1 s RAs Right ascension (J2000) 12 A1 --- DE- Declination sign (J2000) 13- 14 I2 deg DEd Declination (J2000) 16- 17 I2 arcmin DEm Declination (J2000) 19- 22 F4.1 arcsec DEs Declination (J2000) 24- 30 F7.2 10-4ct/s CRate Count rates for ASIC-S3, in 0.5-2.0keV band 32- 36 F5.2 10-4ct/s e_CRate rms uncertainty on CRate 38- 43 F6.2 10+29W LX X-ray luminosity in 0.5-2.0 keV band (1) 45- 48 F4.2 10+29W e_LX rms uncertainty on LX 50- 54 F5.1 10+30W LHa ? Hα Luminosity (1037erg/s, table5) 55- 56 A2 --- Var [L S] Short- and/or Long-term variability (table2 only)
Note (1): LX in 1036erg/s. * For X-ray points source (table3), LX is computed using the bremsstrahlung model obtained from Table 3 (see the text). * For SNRs (table5), LX is computed using the one-temperature model with variable NH model as listed in Table 4 (see text). * For H II Regions (table7), LX is computed using the two-temperature model with the variable NH model listed in Table 6.
Byte-by-byte Description of file: table9.dat
Bytes Format Units Label Explanations
1- 2 A2 --- --- [SF] 4- 19 A16 --- SF Source name (JHHMMSS.s+DDMMSS), <[YST2010] SF JHHMMSS.s+DDMMSS> in Simbad 21- 25 F5.1 10+32W LFUV FUV luminosity in 1039erg/s (1) 27- 29 F3.1 10+32W e_LFUV rms uncertainty on LFUV 31- 33 F3.1 arcsec RFUV FUV radius 35- 39 F5.1 10+32W LNUV NUV luminosity in 1039erg/s (1) 41- 43 F3.1 10+32W e_LNUV rms uncertainty on LNUV 45- 48 F4.1 10+31W L3.6 3.6um luminosity in 1038erg/s 50- 52 F3.1 10+31W e_L3.6 rms uncertainty on L3.6 54- 57 F4.1 10+31W L4.5 4.5um luminosity in 1038erg/s 59- 61 F3.1 10+31W e_L4.5 rms uncertainty on L4.5 63- 67 F5.1 10+32W L24 24um luminosity in 1039erg/s 69- 71 F3.1 10+32W e_L24 rms uncertainty on L24 73- 76 F4.1 arcsec R24 24um radius 78- 81 F4.1 10+31W LHa Hα luminosity in 1038erg/s (1) 83- 86 F4.1 arcsec RHa Hα radius 88- 91 F4.1 10+28W LX X-ray luminosity in 1035erg/s 93- 96 F4.1 10+28W e_LX rms uncertainty on LX
Note (1): FUV, NUV, and Hα luminosities are Galactic extinction corrected.
Byte-by-byte Description of file: table10.dat
Bytes Format Units Label Explanations
1- 2 A2 --- --- [SF] 4- 19 A16 --- SF Source name (JHHMMSS.s+DDMMSS), 21- 24 F4.1 10+5Msun Mass Mass of region 26- 27 I2 Myr Age Age 29- 32 F4.2 mag AV Absorption in V band 34- 36 F3.1 10+21cm-2 NH H column density (1) 38- 41 F4.1 10+31W LW Mechanical luminosity in 1038erg/s (2) 43- 47 F5.1 10+32W LFUVi Integrated FUV luminosity in 1039erg/s 49- 51 F3.1 10+32W e_LFUVi rms uncertainty on LFUVi 53- 56 F4.1 10+32W LHai Integrated Hα luminosity in 1039erg/s 58- 62 F5.1 10+28W LXi Integrated X -ray luminosity in 1035erg/s 64- 67 F4.1 10+28W e_LXi rms uncertainty on LXi
Note (1): Listed NH values include a Galactic component of NH=0.4x1021cm-2. Note (2): under assumption of a constant energy injection rate.
History: * 05-Jun-2012: From electronic version of the journal * 19-Jun-2012: Corrections (factor 10) for CRate and LX values of tables 5 and 7 (CDS error).
(End) Patricia Vannier [CDS] 17-May-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

© Unistra/CNRS