ALMA/NICER observations of GRS 1915+105 indicate a return to a hard state
Abstract
Context.
Aims:
Methods: We conducted two full polarization Atacama Large Millimeter Array observations to study the jet properties during the outburst decay by analyzing the spectral, polarization, and intra-epoch variability for both observation epochs. In addition, we analyzed almost daily Neutron Star Interior Composition Explorer pointing observations, modeling X-ray power spectral densities, spectral energy distributions, and light curves with a physically motivated model to follow the changing accretion disk properties throughout the outburst decay and relating them to the jet emission.
Results: We show that the X-ray and millimeter (mm) spectral, timing, and polarization properties are consistent with those of a typical decaying X-ray binary outburst and that
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- March 2021
- DOI:
- 10.1051/0004-6361/202039581
- arXiv:
- arXiv:2102.00693
- Bibcode:
- 2021A&A...647A.173K
- Keywords:
-
- accretion;
- accretion disks;
- binaries : close;
- stars: black holes;
- stars: winds;
- outflows;
- X-rays: binaries;
- stars: individual: GRS 1915+105;
- Astrophysics - High Energy Astrophysical Phenomena
- E-Print:
- 18 pages, 11 figures, 5 tables. Accepted for publication in A&