2009ApJ...707.1016L

Query : 2009ApJ...707.1016L

2009ApJ...707.1016L - Astrophys. J., 707, 1016-1022 (2009/December-3)

Phase-resolved spectral analysis of 4U 1901+03 during its outburst.

LEI Y.-J., CHEN W., QU J.-L., SONG L.-M., ZHANG S., LU Y., ZHANG H.-T. and LI T.-P.

Abstract (from CDS):

The high-mass X-ray binary 4U 1901+03 is reported to have a pulse profile evolving with the X-ray luminosity and energy during its outburst in 2003 February-July: the pulse peak changed from double to single along with the decreasing luminosity. We have carried out a detailed analysis on the contemporary phase-resolved energy spectrum of 4U 1901+03 as observed by the Rossi X-ray Timing Explorer. We find that the spectra are phase dependent. At the beginning of the outburst, the maximum of the optical depth for Compton scattering is near the major phase peak. During the decay of the outburst, the optical depth has the maximum away from the main peak of the pulse profile. For each observation, Fe Kα emission line is detected in the phase-resolved spectra, and its flux is constant across the pulse phases. This suggests that the origin of the Fe emission is from the accretion disk, not the surface of the neutron star.

Abstract Copyright: ∼

Journal keyword(s): pulsars: individual: 4U 1901+03 - stars: neutron - X-rays: stars

Simbad objects: 1

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Number of rows : 1

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	4U 1901+03	HXB	19 03 39.3926409480	+03 12 15.758070228						B8-9IV	122	0

Query : 2009ApJ...707.1016L

Basic data :

4U 1901+03 -- High Mass X-ray Binary

X (2022MNRAS,4U,...), gam (INTEGRAL1,INTREF), NIR (2MASS,UGPS), MIR (WISEA,WISE), HXB (2023A&A), Psr (2007ApJS), * (Gaia)

19 03 39.3926409480 +03 12 15.758070228 (Optical) [ 0.1936 0.1904 90 ] A 2020yCat.1350....0G

19 01 09.1777048004 +03 07 46.419191502 [ 0.1936 0.1904 90 ]

037.1772317360885 -01.2527902789319 [ 0.1936 0.1904 90 ]

-1.790 -4.337 [0.251 0.241 90] A 2020yCat.1350....0G

0.0005 [0.2139] A 2020yCat.1350....0G

B8-9IV C 2019ATel12560....1M

G 18.567730 [0.004162] C 2020yCat.1350....0G

J 14.138 [0.028] C 2003yCat.2246....0C

H 13.220 [0.033] C 2003yCat.2246....0C

K 12.581 [0.028] C 2003yCat.2246....0C

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`4U 1901+03`	`1M 1901+030`	`3U 1901+03`	`[KRL2007b] 351`
`1H 1858+031`	`2MASS J19033940+0312158`	`UGPS J190339.39+031215.6`	`Gaia DR3 4268774695647764352`
`INTEGRAL1 107`	`TIC 177377138`	`WISEA J190339.41+031215.6`	`Gaia DR2 4268774695647764352`
`INTREF 958`	`2U 1907+02`	`WISE J190339.41+031215.4`

References (122 between 1850 and 2026) (Total 122)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : 4U 1901+03

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`2MASS J19033940+0312158`	`UGPS J190339.39+031215.6`	`WISEA J190339.41+031215.6`	`WISE J190339.41+031215.4`	`Gaia DR3 4268774695647764352`
`Gaia DR2 4268774695647764352`

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