English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Constraints on the collimated X-ray emission of SS 433 from the reflection on molecular clouds

Khabibullin, I. I., & Sazonov, S. Y. (2019). Constraints on the collimated X-ray emission of SS 433 from the reflection on molecular clouds. Astronomy Letters - a Journal of Astronomy and Space Astrophysics, 45(5), 282-298. doi:10.1134/S1063773719050037.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0004-4F75-1 Version Permalink: http://hdl.handle.net/21.11116/0000-0004-4F78-E
Genre: Journal Article

Files

show Files
hide Files
:
Constraints on the Collimated X-ray Emission of SS 433 from the Reflection on Molecular Clouds.pdf (Any fulltext), 2MB
 
File Permalink:
-
Name:
Constraints on the Collimated X-ray Emission of SS 433 from the Reflection on Molecular Clouds.pdf
Description:
-
Visibility:
Private
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Khabibullin, I. I.1, Author              
Sazonov, S. Yu.1, Author              
Affiliations:
1High Energy Astrophysics, MPI for Astrophysics, Max Planck Society, ou_159881              

Content

show
hide
Free keywords: -
 Abstract: We calculate the X-ray signal that should arise due to reflection of the putative collimated X-ray emission of the Galactic supercritical accretor SS 433 on the molecular clouds in its vicinity. The molecular gas distribution in the region of interest has been constructed based on the data of the Boston University-Five College Radio Astronomy Observatory Galactic Ring Survey in 13CO J= 1 → 0 emission line, while the collimated emission was assumed to be aligned with the direction of the relativistic jets, which are continuously launched by the system. We consider all the available Chandraobservations covering the regions possibly containing the reflection signal and put constraints on the apparent face-on luminosity of SS 433 above 4 keV. No signatures of the predicted signal have been found in the analysed regions down to a 4–8 keV surface brightness level of ∼10−11 erg/s/cm2/deg2. This translates into the limit on the apparent face-on 2–10 keV luminosity of SS 433 LX2–10≲ 8 ×1038 erg/s, provided that the considered clouds do fall inside the illumination cone of the collimated emission. This, however, might not be the case due to persisting uncertainty in the line-of-sight distances to SS 433 dSS433 (4.5–5.5 kpc) and to the considered molecular clouds. For the half-opening angle of the collimation cone larger than or comparable to the amplitude of the jets’ precession (≈21°), the stringent upper limit quoted above is most relevant if dSS433 < 5 kpc, provided that the kinematic distances to the considered molecular clouds are sufficiently accurate (within ∼1000 pc of the adopted values). Dropping the last assumption, a more conservative constraint is LX2–10≲ 1040 erg/s for dSS433 = 4.65–4.85 kpc, and yet worse for dSS433 outside this range. We conclude that SS 433 is not likely to belong to the brightest ultraluminous X-ray sources if it could be observed face-on, unless its X-ray emission is highly collimated. However, better X-ray coverage of the molecular clouds in the region of interest is needed to eliminate dependence of this conclusion on incidence of the individual clouds inside the putative X-ray illumination cone of SS 433.

Details

show
hide
Language(s): eng - English
 Dates: 2019-06-05
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1134/S1063773719050037
Other: LOCALID: 3148246
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Astronomy Letters - a Journal of Astronomy and Space Astrophysics
  Alternative Title : Astron. Lett.-J. Astron. Space Astrophys.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 45 (5) Sequence Number: - Start / End Page: 282 - 298 Identifier: ISSN: 1063-7737
ISSN: 1562-6873