4FGLJ0407.7-5702 optical spectroscopy & light curve Virtual Observatory Resource

Authors
  1. Miller J.M.
  2. Swihart S.J.
  3. Strader J.
  4. Urquhart R.
  5. Aydi E.
  6. Chomiuk L.,Dage K.C.
  7. Kawash A.
  8. Shishkovsky L.
  9. Sokolovsky K.V.
  10. Published by
    CDS
Abstract

We report the discovery of a variable optical and X-ray source within the error ellipse of the previously unassociated Fermi Large Area Telescope {gamma}-ray source 4FGLJ0407.7-5702. A 22ks observation from XMM-Newton/European Photon Imaging Camera (EPIC) shows an X-ray light curve with rapid variability and flaring. The X-ray spectrum is well fit by a hard power law with {Gamma}=1.7. Optical photometry taken over several epochs is dominated by aperiodic variations of moderate amplitude. Optical spectroscopy with Southern Astrophysical Research (SOAR) and Gemini reveals a blue continuum with broad and double-peaked H and He emission, as expected for an accretion disk around a compact binary. Overall, the optical, X-ray, and {gamma}-ray properties of 4FGLJ0407.7-5702 are consistent with a classification as a transitional millisecond pulsar in the subluminous disk state. We also present evidence that this source is more distant than other confirmed or candidate transitional millisecond pulsar binaries, and that the ratio of X-ray to {gamma}-ray flux is a promising tool to help identify such binaries, indicating that a more complete census for these rare systems is becoming possible.

Keywords
  1. neutron-stars
  2. visible-astronomy
  3. spectroscopy
  4. infrared-photometry
  5. photometry
Bibliographic source Bibcode
2020ApJ...904...49M
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/904/49
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJ/904/49
Document Object Identifer DOI
doi:10.26093/cds/vizier.19040049

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/904/49
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/904/49
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/904/49
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).

History

2022-05-30T07:06:40Z
Resource record created
2022-05-30T07:06:40Z
Created
2022-06-13T10:00:23Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr