J/A+A/456/977 XMM observations of NGC 2516 stars (Marino+, 2006)
X-ray variability of NGC 2516 stars in the XMM-Newton observations.
Marino A., Micela G., Pillitteri I., Peres G.
<Astron. Astrophys., 456, 977-983 (2006)>
=2006A&A...456..977M 2006A&A...456..977M
ADC_Keywords: Clusters, open ; Stars, late-type ; X-ray sources ;
Photometry, UBVRI
Keywords: X-ray: stars - stars: activity - stars: early-type -
stars: late-type - stars: coronae -
galaxy: open clusters and associations: individual: NGC 2516
Abstract:
We present the characteristics of the X-ray variability of stars in
the cluster NGC 2516 as derived from XMM-Newton/EPIC/pn data. The
X-ray variations on short (hours), medium (months), and long (years)
time scales have been explored. We detected 303 distinct X-ray sources
by analysing six EPIC/pn observations; 194 of them are members of the
cluster. Stars of all spectral types, from the early-types to the
late-M dwarfs, were detected.
Objects:
------------------------------------------------
RA (2000) DE Designation(s)
------------------------------------------------
07 58 06 -60 45.0 NGC 2516 = C 0757-607
------------------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 44 6 XMM-Newton/EPIC/pn observations of NGC 2516
table2.dat 77 474 X-ray and optical properties of NGC 2516 members
in the XMM-Newton/EPIC/pn observations having
more than 25 counts.
--------------------------------------------------------------------------------
See also:
J/A+A/312/818 : NGC 2516 X-ray sources (Dachs+, 1996)
J/A+A/375/863 : Photometry in NGC 2516 (Jeffries+, 2001)
J/AJ/123/290 : UBVI CCD photometry of NGC 2516 (Sung+, 2002)
J/ApJ/588/1009 : Chandra X-ray observations of NGC 2516 (Damiani+, 2003)
J/ApJ/606/466 : X-ray variability in NGC 2516 (Wolk+, 2004)
J/A+A/450/993 : XMM survey of NGC 2516 (Pillitteri+, 2006)
J/MNRAS/367/781 : XMM observations of NGC 2547 (Jeffries+, 2006)
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1 A1 --- Obs Observation code
3- 12 I010 --- ObsId XMM Observation identification number
14- 16 I3 --- Orbit Orbit number
18- 21 F4.1 ks FTime Filtered time
23- 32 A10 "YYYY/MM/DD" ObsDate Start date
34- 36 I3 --- NX-ray Number of X-ray source
38- 40 I3 --- Ndetect Number of detected members
42- 44 I3 --- Nopt Number of optical members
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 I5 --- JTH JTH number (Cl* NGC 2516 JTH NNNNN in Simbad)
7 A1 --- Obs [a-f] Observation code, in table1.dat
9- 10 I2 h RAh Right ascension (J2000)
12- 13 I2 min RAm Right ascension (J2000)
15- 19 F5.2 s RAs Right ascension (J2000)
21 A1 --- DE- Declination sign (J2000)
22- 23 I2 deg DEd Declination (J2000)
25- 26 I2 arcmin DEm Declination (J2000)
28- 31 F4.1 arcsec DEs Declination (J2000)
33- 38 F6.3 mag Vmag V magnitude
40- 45 F6.3 mag B-V ? B-V colour index
47- 51 F5.3 mag V-I ? V-I colour index
53- 59 F7.1 s ExpTime Exposure time
61- 66 F6.3 ct/ks CRate Count Rate (0.2-2keV)
68- 72 F5.3 ct/ks e_CRate rms uncertainty on CRate
74- 75 A2 --- l_K-S [≥] Limit on K-S probability
76-77 I2 % K-S ? Result of the Kolmogorov-Smirnov membership
probability test
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 07-Apr-2007