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J/A+A/465/375       X-ray monitoring of optical novae in M31  (Pietsch+, 2007)

X-ray monitoring of optical novae in M 31 from July 2004 to February 2005. Pietsch W., Haberl F., Sala G., Stiele H., Hornoch K., Riffeser A., Fliri J., Bender R., Buhler S., Burwitz V., Greiner J., Seitz S. <Astron. Astrophys. 465, 375 (2007)> =2007A&A...465..375P
ADC_Keywords: Novae ; X-ray sources Keywords: galaxies: individual: M 31 - novae, cataclysmic variables - X-rays: galaxies - X-rays: binaries - catalogs Abstract: Optical novae have recently been identified as the major class of supersoft X-ray sources in M 31 based on ROSAT and early XMM-Newton and Chandra observations. This paper reports on a search for X-ray counterparts of optical novae in M 31 based on archival Chandra HRC-I and ACIS-I as well as XMM-Newton observations of the galaxy center region obtained from July 2004 to February 2005. We systematically determine X-ray brightness or upper limit for counterparts of all known optical novae with outbursts between November 2003 to the end of the X-ray coverage. In addition, we determine the X-ray brightnesses for counterparts of four novae with earlier outbursts. For comparison with the X-ray data we created a catalogue of optical novae in M 31 based on our own nova search programs and on all novae reported in the literature. We collected all known properties and named the novae consistently following the CBAT scheme. We detect eleven out of 34 novae within a year after the optical outburst in X-rays. While for eleven novae we detect the end of the supersoft source phase, seven novae are still bright more than 1200, 1600, 1950, 2650, 3100, 3370 and 3380d after outburst. One nova is detected to turn on 50d, another 200d after outburst. Three novae unexpectedly showed short X-ray outbursts starting within 50d after the optical outburst and lasting only two to three months. The X-ray emission of several of the novae can be characterized as supersoft from hardness ratios and/or X-ray spectra or by comparing HRC-I count rates with ACIS-I count rates or upper limits. The number of detected optical novae at supersoft X-rays is much higher than previously estimated (>30%). We use the X-ray light curves to estimate the burned masses of the White Dwarf and of the ejecta. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file tablea1.dat 265 719 Catalogue of optical novae in M 31 refs.dat 114 157 References (tablea2 of the paper) tableb2.dat 105 654 Photometry of novae by Kamil Hornoch
See also: II/208 : BVRI CCD photometry in the field of M 31 (Magnier+ 1992) J/A+A/451/835 : Properties of X-ray sources in M31/M33 (Hatzidimitriou+, 2006) J/A+A/445/423 : WeCAPP Survey. M31 variables (Fliri+, 2006) J/A+A/434/483 : An XMM-Newton survey of M 31 (Pietsch+, 2005) J/ApJ/609/735 : M31 Chandra X-ray sources (Williams+, 2004) J/ApJ/610/247 : M31 supersoft and quasi-soft X-ray sources (Di Stefano+, 2004) J/ApJ/577/738 : M31 Chandra X-ray point sources (Kong+, 2002) J/ApJ/578/114 : Chandra HRC source in M31 (Kaaret, 2002) J/A+AS/114/215 : New SNR candidates in M31 (Magnier+, 1995) Byte-by-byte Description of file: tablea1.dat
Bytes Format Units Label Explanations
1- 4 A4 --- --- [M31N] 6- 13 A8 --- M31N Nova "CBAT" name (G1) 19- 20 I2 h RAh Right Ascension J2000 (hours) 22- 23 I2 min RAm Right Ascension J2000 (minutes) 25- 29 F5.2 s RAs Right Ascension J2000 (seconds) 31 A1 --- DE- Declination J2000 (sign) 32- 33 I2 deg DEd Declination J2000 (degrees) 35- 36 I2 arcmin DEm Declination J2000 (minutes) 38- 41 F4.1 arcsec DEs Declination J2000 (seconds) 43- 45 F3.1 arcsec e_RAs Error on Right Ascension 47- 49 F3.1 arcsec e_DEs Error on Declination 51- 54 I4 --- r_Pos Position reference (1) 56- 65 F10.2 d JD Julian date of start of outburst 67- 70 I4 --- r_JD Outburst reference (1) 72 A1 --- IDout [a<] Outburst ID (2) 74- 77 I4 --- r_IDout ? Outburst ID reference (1) 79- 82 F4.1 mag mag ? Observed magnitude of outburst maximum 84- 85 A2 --- n_mag ? Filter of mag (3) 87- 90 I4 --- r_mag ? Magnitude and filter reference (1) 92- 94 I3 d T2 ? Time from Maximum to 2 magnitudes below 96- 98 I3 d T2u ? Time from Maximum to 2 magnitudes below (if range possible) 100-103 I4 --- r_T2 ? T2 reference (1) 104 A1 --- n_Onames [*] CDS remarks on alternatives names (4) 105-144 A40 --- Onames ? Alternative names 146-169 A24 --- r_Onames ? Additional references (1) 171-184 A14 --- r_Sp ? Spectral confirmation references (1) 186-199 A14 --- r_Xray ? X-ray references (1) 201-265 A65 --- Rem ? Remarks
Note (1): See refs.dat file Note (2): Outburst ID takes the values: a = well defined start of outburst < = outburst start before else badly defined Note (3): Filters used as follows: pg = photographic w = white light Ha = broad Halpha r,R,U,V,B = broad band colour Note (4): Notes form CDS: M31N 1968-10b: ShAl 3 = 00 43 49.4 +40 43 07 (from 1991Ap&SS.180..273S), ⟹ cross-identification to ShAl 3 (= M31 V1092) should be erroneous M31N 1982-08a: [CFN87] 4 = 00 42 51.6 +41 19 05 (in 1987ApJ...318..520C), ⟹ cross-identification to [CFN87] 4 should be erroneous M31N 1986-09b: [CFN87] 29 = 00 43 14.1 +41 18 39 (in 1987ApJ...318..520C), ⟹ cross-identification to [CFN87] 29 should be erroneous
Byte-by-byte Description of file: refs.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Ref Reference number 5- 23 A19 --- BibCode BibCode 25- 45 A21 --- Aut Author's name 47-106 A60 --- Com Comments 107-114 A8 --- SRef reference short code
Byte-by-byte Description of file: tableb2.dat
Bytes Format Units Label Explanations
1- 2 I2 --- No [1/41] Hornoch nova number 4- 7 A4 --- --- [M31N] 9- 16 A8 --- M31N M31 nova name following CBAT nomenclature (G1) 18- 28 F11.3 d JD Julian Date of measurement 30 A1 --- l_mag Limit flag on mag 32- 36 F5.2 mag mag Magnitude of measurement 38 A1 --- u_mag Uncertainty flag on mag 40- 41 A2 --- n_mag Filter used for mag determination 43- 77 A35 --- Observ Observer 79- 92 A14 --- Obs Observatory 94-105 A12 --- Tel Telescope
Global Notes: Note (G1): The M31N designation is written YYYY-MMa, where YYYY MM represent the year and month of discovery, and a lowercase letter is assigned in a chronological order.
History: 20-Mar-2007: on-line version 25-Jan-2013: some names (MN31N) corrected in tablea1 Acknowledgements: Wolfgang Pietsch, wnp(at)mpe.mpg.de
(End) Wolfgang Pietsch [MPE, Germany], Patricia Vannier [CDS] 29-Dec-2006
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

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