A dataset provided by the European Space Agency

Proposal ID 0120112
Obs ID 01201120001, 01201120003
Title Connections between Line Emission, Radio Jets and Spec-tral States in the Black Hole X-Ray Transient 4U 1630-47
Download Data Associated to the proposal https://isla.esac.esa.int/tap/download/bundle?format=ascii_curl&product_id=prop_id:0120112
DOI https://doi.org/10.57780/esa-xtd1m5o
Author Tomsick
Abstract The X-ray flux observed from X-ray transients changes by several orders of magnitude between quiescence and outburst, providing an opportunity to learn about black hole candidates (BHCs), accretion onto compact objects and the processes responsible for high energy emission. The high energy emission provides a probe of the regions of space close to the compact object, allowing us to study strong gravity and jet formation processes. 4U 1630-47 is the only BHC X-ray transient that has outbursts which recur on a relatively regular and short time scale. In addition to having a high level of activity, the source produces strong hard X-ray emission, and optically thin, highly polarized synchrotron radio emission, indicating the presence of jets. We propose to observe 4U 1630-47 with INTEGRAL along with contemporaneous radio observations in order to: 1. measure the properties of high energy emission lines (if they are present), including the narrow electron-positron annihilation line at 511~keV and the 300-500~keV lines of uncertain origin that have been observed in other systems; 2. determine the relationship between the radio and high energy emission; and 3. measure the energy spectra in the hard and soft states to place constraints on accretion geometries and emission mechanisms. The high spectral resolution, good sensitivity and broadband capabilities of INTEGRAL are critical for achieving the goals of this proposal.
Publications
Temporal Coverage 2003-02-01T05:41:53Z / 2003-02-05T08:35:36Z
Version 1.0
Mission Description The INTEGRAL (International Gamma-Ray Astrophysics Laboratory) mission, launched by the European Space Agency (ESA) on October 17, 2002, was designed to study high-energy phenomena in the universe. INTEGRAL was operating until february 2025 and it was equipped with three high-energy instruments: the Imager on Board the INTEGRAL Satellite (IBIS), the Spectrometer on INTEGRAL (SPI), and the JEM-X (Joint European Monitor for X-rays). Its Optical Monitoring Camera (OMC) provided optical V-band magnitude measurements, complementing the high-energy observations.
Creator Contact https://www.cosmos.esa.int/web/integral/helpdesk
Date Published 2025-03-25T09:54:29Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Tomsick, 2025, 'Connections between Line Emission, Radio Jets and Spec-\ntral States in the Black Hole X-Ray Transient 4U 1630-47', 1.0, European Space Agency, https://doi.org/10.57780/esa-xtd1m5o