Access to Astronomical Catalogues

← Click to display the menu
J/ApJ/657/286       Chandra X-ray sources in M30 (NGC 7099)  (Lugger+, 2007)

Chandra X-ray sources in the collapsed-core globular cluster M30 (NGC 7099). Lugger P.M., Cohn H.N., Heinke C.O., Grindlay J.E., Edmonds P.D. <Astrophys. J., 657, 286-301 (2007)> =2007ApJ...657..286L
ADC_Keywords: Clusters, globular ; X-ray sources Keywords: globular clusters: individual (M30, NGC 7099) - novae, cataclysmic variables - stars: neutron - X-rays: binaries Abstract: We report the detection of six discrete, low-luminosity (LX<1033erg/s) X-ray sources, located within 12" of the center of the collapsed-core globular cluster M30 (NGC 7099), and a total of 13 sources within the half-mass radius, from a 50ks Chandra ACIS-S exposure. Description: We obtained a 49.4ks ACIS-S1 exposure of M30 on 2001 November 11, with the center of the cluster placed in the S3 chip. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 171 50 M30 X-Ray Source Properties
See also: J/A+A/313/129 : Positions and magnitudes of M30 blue stars (Burgarella+ 1996) J/AJ/112/1061 : BV photometry of NGC 7099 (Bergbusch 1996) J/AJ/116/1757 : M30 UBV photometry (Guhathakurta+, 1998) J/ApJ/518/262 : CCD VIc Photometry of M30 Stars (Sandquist+, 1999) J/A+A/462/L9 : Radial velocities in NGC 7099 (Scarpa+, 2007) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 2 I2 --- [LCH2007] Sequential number 4- 29 A26 ---- Name Name (CXOGLB JHHMMSS.ss+DDMMSS.s or CXOU HHMMSS.ss+DDMMSS.s) (1) 31- 33 A3 --- ID Identification label for brightest sources 35- 50 A16 --- Type Object type (may include redshift) 52- 53 I2 h RAh Right ascension (J2000) 55- 56 I2 min RAm Right ascension (J2000) 58- 63 F6.3 s RAs Right ascension (J2000) 65- 69 F5.3 s e_RAs rms uncertainty on RA 71 A1 --- DE- Declination sign (J2000) 72- 73 I2 deg DEd Declination (J2000) 75- 76 I2 arcmin DEm Declination (J2000) 78- 82 F5.2 arcsec DEs Declination (J2000) 84- 87 F4.2 arcsec e_DEs rms uncertainty on DE 89- 92 F4.2 arcmin r Radius from center of cluster 94- 99 F6.1 ct Counts Counts in the 0.3-7keV band 101-104 F4.1 ct E_Counts Error on Counts (upper value) 106-109 F4.1 ct e_Counts Error on Counts (lower value) 111 A1 --- l_C1 Limit flag on C1 112-116 F5.2 --- C1 C1 X-ray index (2) 118-121 F4.2 --- E_C1 ? Error on C1 (upper value) 123-126 F4.2 --- e_C1 ? Error on C1 (lower value) 128 A1 --- l_C2 Limit flag on C2 129-133 F5.2 --- C2 C2 X-ray index (2) 135-138 F4.2 --- E_C2 ? Error on C2 (upper value) 140-143 F4.2 --- e_C2 ? Error on C2 (lower value) 145-149 F5.1 aW/m2 FXt Flux density in total (0.5-6keV) band (3) 151-153 F3.1 aW/m2 E_FXt Error on FXt (upper value) (3) 155-157 F3.1 aW/m2 e_FXt Error on FXt (lower value) (3) 159-163 F5.1 aW/m2 FXs Flux density in soft (0.5-2.5keV) band (3) 165-167 F3.1 aW/m2 E_FXs Error on FXs (upper value) (3) 169-171 F3.1 aW/m2 e_FXs Error on FXs (lower value) (3)
Note (1): CXOGLB for sources within rh; CXOU for sources outside of r_h. Note (2): X-ray index defined as: C1=2.5log[F(1.0-7.0keV)/F(0.3-1.0keV)] C2=2.5log[F(1.5-7.0keV)/F(1.0-1.5keV)] Note (3): X-ray fluxes are corrected for photoelectric absorption of 1.7x1020cm-2 and in units of 10-15erg/s/cm2.
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 02-May-2009
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

© UDS/CNRS

Contact