2009A&A...498..195B


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.05CET20:41:43

2009A&A...498..195B - Astronomy and Astrophysics, volume 498, 195-207 (2009/4-4)

From outburst to quiescence: the decay of the transient AXP XTE J1810-197.

BERNARDINI F., ISRAEL G.L., DALL'OSSO S., STELLA L., REA N., ZANE S., TUROLLA R., PERNA R., FALANGA M., CAMPANA S., GOETZ D., MEREGHETTI S. and TIENGO A.

Abstract (from CDS):

XTEJ1810-197 is the first transient anomalous X-ray pulsar ever discovered. Its highly variable X-ray flux allowed us to study the timing and spectral emission properties of a magnetar candidate over a flux range of about two orders of magnitude. We analyzed nine XMM-Newton observations of XTEJ1810-197 collected over a four year baseline (September 2003-September 2007). EPIC PN and MOS data were reduced and used for detailed timing and spectral analysis. Pulse-phase spectroscopic studies were also carried out for observations with a high enough signal-to-noise. We find that (i) a three-blackbody model reproduces the spectral properties of XTEJ1810-197 over the entire outburst statistically better than the two blackbodies model previously used in the literature, (ii) the coldest blackbody is consistent with the thermal emission from the whole surface and has temperature and radius similar to those inferred from ROSAT observations before the outburst onset, (iii) there is a spectral feature around 1.1 keV during six consecutive observations (since March 2005). If this stems from proton resonant cyclotron scattering, it would imply a magnetic field of ∼2x1014G. This closely agrees with the value from the spin period measurements.

Abstract Copyright:

Journal keyword(s): moon - stars: magnetic fields - stars: neutron - X-rays: stars

CDS comments: Paragraph.1. 1E 1048.1-5973 is a misprint for 1E 1048.1-5937.

Simbad objects: 7

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Number of rows : 7

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 PSR J0146+6145 Psr 01 46 22.21 +61 45 03.8   28.100 25.620     ~ 517 0
2 2E 2336 HXB 10 50 08.93 -59 53 19.9           Be 385 0
3 PSR J1550-5418 Psr 15 50 54.18 -54 18 23.9           ~ 349 1
4 PSR J1647-4552 Psr 16 47 10.18 -45 52 16.7           ~ 180 1
5 AX J1809.8-1943 Psr 18 09 51.07 -19 43 51.8           ~ 382 0
6 PSR J1819-1458 Psr 18 19 34.173 -14 58 03.57           ~ 102 0
7 2E 4673 HXB 23 01 08.14 +58 52 44.5           ~ 596 1

    Equat.    Gal    SGal    Ecl

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2021.03.05-20:41:43

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