2002A&A...392..885C


C.D.S. - SIMBAD4 rel 1.7 - 2020.02.18CET08:07:48

2002A&A...392..885C - Astronomy and Astrophysics, volume 392, 885-893 (2002/9-4)

BeppoSAX Wide Field Cameras observations of six type I X-ray bursters.

CORNELISSE R., VERBUNT F., IN'T ZAND J.J.M., KUULKERS E., HEISE J., REMILLARD R.A., COCCHI M., NATALUCCI L., BAZZANO A. and UBERTINI P.

Abstract (from CDS):

We have discovered three certain (SAX J1324.5-6313, 2S 1711-339 and SAX J1828.5-1037) and two likely (SAX J1818.7+1424 and SAX J2224.9+5421) new thermonuclear X-ray burst sources with the BeppoSAX Wide Field Cameras, and observed a second burst ever from a sixth one (2S0918-549). Four of them (excluding 2S1711-339 and 2S0918-549) are newly detected X-ray sources from which we observed single bursts, but no persistent emission. We observe the first 11 bursts ever from 2S1711-339; persistent flux was detected during the first ten bursts, but not around the last burst. A single burst was recently detected from 2S0918-549 by Jonker et al. (2001ApJ...553..335J); we observe a second burst showing radius expansion, from which a distance of 4.2kpc is derived. According to theory, bursts from very low flux levels should last ≳100s. Such is indeed the case for the last burst from 2S1711-339, the single burst from SAX J1828.5-1037 and the two bursts from 2S0918-549, but not for the bursts from SAX J1324.5-6313, SAX J1818.7+1424 and SAX J2224.9+5421. The bursts from the latter sources all last ∼20s. We suggest that SAX J1324.5-6313, SAX J1818.7+1424, SAX J1828.5-1037 and SAX J2224.9+5421 are members of the recently proposed class of bursters with distinctively low persistent flux levels, and show that the galactic distribution of this class is compatible with that of the standard low-mass X-ray binaries.

Abstract Copyright:

Journal keyword(s): accretion, accretion disks - binaries: close - stars: individual: SAX J1324.5-6313, SAX J1818.7+1424, SAX J1828.5-1037, SAX J2224.9+5421, 2S1711-339, 2S0918-549 - stars: neutron - X-rays: bursts

Simbad objects: 19

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Number of rows : 19

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 4U 0919-54 LXB 09 20 26.4814865475 -55 12 24.507988707 20.40 21.30 21.0     ~ 144 0
2 SAX J1324.5-6313 X 13 24 27 -63 13.4           ~ 16 0
3 V* V822 Cen LXB 14 58 21.9350279092 -31 40 07.515505032 11.95 12.85 12.8     K3-K7V 503 0
4 V* V801 Ara LXB 16 40 55.5 -53 45 05 17.50 18.20 17.5     ~ 780 1
5 RX J1709.5-2639 LXB 17 09 34 -26 39.9           ~ 104 0
6 4U 1711-34 LXB 17 14 19.78 -34 02 47.3           ~ 42 0
7 RX J1718.4-4029 LXB 17 18 24.13 -40 29 30.4           ~ 35 0
8 2XMM J174502.1-285450 LXB 17 45 02.33 -28 54 49.7           ~ 115 0
9 SAX J1750.8-2900 LXB 17 50 24.42 -29 02 15.4           ~ 127 0
10 SAX J1752.3-3138 LXB 17 52 24.00 -31 37 42.0           ~ 20 0
11 SAX J1753.5-2349 LXB 17 53 31.896 -23 49 14.86           ~ 28 0
12 SAX J1806.5-2215 LXB 18 06 34 -22 15.1           ~ 43 0
13 V* V4580 Sgr LXB 18 08 27.54 -36 58 44.3   16.81 16.51     ~ 861 0
14 HD 168344 * 18 18 37.6351827514 +14 22 44.418437065   8.64 7.59     K2 7 0
15 SAX J1818.7+1424 X 18 18 44 +14 24.2           ~ 12 0
16 M 28 GlC 18 24 32.89 -24 52 11.4           ~ 649 0
17 3XMM J182833.7-103702 LXB 18 28 33.7755000998 -10 37 03.712323927           ~ 30 0
18 V* V1333 Aql LXB 19 11 16.05 +00 35 05.8 15.00 15.40 14.8     ~ 1000 0
19 SAX J2224.9+5421 X 22 24 52 +54 21.9           ~ 17 1

    Equat.    Gal    SGal    Ecl

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2020.02.18-08:07:48

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