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| Query : 2025ApJ...992...66K |
2025ApJ...992...66K - Astrophys. J., 992, 66 (2025/October-2)
X-Ray and Radio Polarimetry of the Neutron Star Low-mass X-Ray Binary GX 13+1.
KASHYAP U., MACCARONE T.J., PATTIE E.C., NG M., RAVI S. and MARSHALL H.L.
Abstract (from CDS):
We report the X-ray and radio polarization study of the neutron star low-mass X-ray binary (LMXB) GX 13+1 using the Imaging X-ray Polarimetry Explorer (IXPE) and Very Large Array. Simultaneous Neutron Star Interior Composition Explorer observations show that the source was in parts of the Z state during our IXPE observations, exhibiting moderate changes in the hardness-intensity diagram. The source exhibits X-ray dips in the light curve along with hints of polarization swings between the dip and nondip states. The X-ray spectropolarimetry results suggest a source geometry comprising an accretion disk component representing the softer disk emission, along with a blackbody representing the harder emission from the boundary layer or a spreading layer. We investigate the geometry of GX 13+1 by considering our X-ray and radio polarization findings.
Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.
Journal keyword(s): Neutron stars - X-ray binary stars - Low-mass x-ray binary stars - Accretion - Polarimetry
Simbad objects: 9
| Number of rows : 9 |
| 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 | V* BR Cir | HXB | 15 20 40.8532547060 | -57 10 00.206639033 | 21.4 | 21.4 | B5-A0I | 849 | 1 | |||
| 2 | V* V818 Sco | LXB | 16 19 55.0692669024 | -15 38 25.017666540 | 11.60 | 12.40 | 11.1 | Oev | 1730 | 0 | ||
| 3 | 4U 1642-45 | LXB | 16 45 48.1 | -45 36 42 | ~ | 467 | 1 | |||||
| 4 | [KRL2007b] 214 | LXB | 17 00 58.46 | -46 11 08.6 | ~ | 296 | 0 | |||||
| 5 | V* V1101 Sco | LXB | 17 05 44.4916006152 | -36 25 23.049324480 | 20.10 | 18.6 | ~ | 473 | 0 | |||
| 6 | 4U 1758-25 | LXB | 18 01 09.7308060816 | -25 04 44.120221284 | 11.08 | ~ | 705 | 1 | ||||
| 7 | V* V5512 Sgr | LXB | 18 14 31.3 | -17 09 23 | 12.73 | K5III | 449 | 0 | ||||
| 8 | V* NP Ser | LXB | 18 16 01.7 | -14 02 09 | 18.8 | K | 683 | 2 | ||||
| 9 | V* V1341 Cyg | LXB | 21 44 41.1544345272 | +38 19 17.066570988 | 15.00 | 15.13 | 14.68 | 15.00 | A9III | 1229 | 1 |
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