SIMBAD references

2010ApJ...714.1424T - Astrophys. J., 714, 1424-1440 (2010/May-2)

A limit on the number of isolated neutron stars detected in the ROSAT All-Sky-Survey bright source catalog.

TURNER M.L., RUTLEDGE R.E., LETCAVAGE R., SHEVCHUK A.S.H. and FOX D.B.

Abstract (from CDS):

Using new and archival observations made with the Swift satellite and other facilities, we examine 147 X-ray sources selected from the ROSAT All-Sky-Survey Bright Source Catalog (RASS/BSC) to produce a new limit on the number of isolated neutron stars (INSs) in the RASS/BSC, the most constraining such limit to date. Independent of X-ray spectrum and variability, the number of INSs is ≤48 (90% confidence). Restricting attention to soft (kTeff < 200 eV), non-variable X-ray sources–as in a previous study–yields an all-sky limit of ≤31 INSs. In the course of our analysis, we identify five new high-quality INS candidates for targeted follow-up observations. A future all-sky X-ray survey with eROSITA, or another mission with similar capabilities, can be expected to increase the detected population of X-ray-discovered INSs from the 8-50 in the BSC, to (for a disk population) 240-1500, which will enable a more detailed study of neutron star population models.

Abstract Copyright:

Journal keyword(s): stars: neutron - X-rays: stars

VizieR on-line data: <Available at CDS (J/ApJ/714/1424): table1.dat table2.dat>

Simbad objects: 162

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2020.01.21-06:44:28

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