Skip to main content
We gratefully acknowledge support from the Simons Foundation, member institutions, and all contributors. Donate

Astrophysics> High Energy Astrophysical Phenomena

arXiv:1807.00874 (astro-ph)
[Submitted on 2 Jul 2018]

Title:The 7-year MAXI/GSC X-ray Source Catalog in the High Galactic-Latitude Sky (3MAXI)

View PDF
Abstract:We present the third MAXI/GSC catalog in the high Galactic-latitude sky ($|b| > 10^\circ$) based on the 7-year data from 2009 August 13 to 2016 July 31, complementary to that in the low Galactic-latitude sky ($|b| < 10^\circ$; Hori et al. 2018). We compile 682 sources detected at significances of $s_{\rm D,4-10~keV} \geq 6.5$ in the 4--10 keV band. A two-dimensional image fit based on the Poisson likelihood algorithm ($C$-statistics) is adopted for the detections and constraints on their fluxes and positions. The 4--10 keV sensitivity reaches $\approx 0.48$ mCrab, or $\approx 5.9 \times 10^{-12}$ erg cm$^{-2}$ s$^{-1},ドル over the half of the survey area. Compared with the 37-month catalog (Hiroi et al. 2013), which adopted a threshold of $s_{\rm D,4-10~keV} \geq 7,ドル the source number increases by a factor of $\sim1ドル.4. The fluxes in the 3--4 keV and 10--20 keV bands are further estimated, and hardness ratios (HRs) are calculated using the 3--4 keV, 4--10 keV, 3--10 keV, and 10--20 keV band fluxes. We also make the 4--10 keV lightcurves in one year bins for all the sources and characterize their variabilities with an index based on a likelihood function and the excess variance. Possible counterparts are found from five major X-ray survey catalogs by Swift, Uhuru, RXTE, XMM-Newton, and ROSAT, and an X-ray galaxy-cluster catalog (MCXC). Our catalog provides the fluxes, positions, detection significances, HRs, one-year bin lightcurves, variability indices, and counterpart candidates.
Comments: 18 pages, 15 figures, accepted for publication in ApJS. The links to the full data: Tab. A ( this http URL ), Tab. B ( this http URL ), Fig. A ( this http URL ), and the Fig. A data ( this http URL )
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE)
Cite as: arXiv:1807.00874 [astro-ph.HE]
(or arXiv:1807.00874v1 [astro-ph.HE] for this version)
https://doi.org/10.48550/arXiv.1807.00874
Related DOI: https://doi.org/10.3847/1538-4365/aad1ef

Submission history

From: Kawamuro Taiki [view email]
[v1] Mon, 2 Jul 2018 20:13:43 UTC (552 KB)
Full-text links:

Access Paper:

  • View PDF
  • TeX Source
  • Other Formats
Current browse context:
astro-ph.HE
Change to browse by:
export BibTeX citation

Bibliographic and Citation Tools

Bibliographic Explorer (What is the Explorer?)
Connected Papers (What is Connected Papers?)
Litmaps (What is Litmaps?)
scite Smart Citations (What are Smart Citations?)

Code, Data and Media Associated with this Article

alphaXiv (What is alphaXiv?)
CatalyzeX Code Finder for Papers (What is CatalyzeX?)
DagsHub (What is DagsHub?)
Gotit.pub (What is GotitPub?)
Hugging Face (What is Huggingface?)
Papers with Code (What is Papers with Code?)
ScienceCast (What is ScienceCast?)

Demos

Replicate (What is Replicate?)
Hugging Face Spaces (What is Spaces?)
TXYZ.AI (What is TXYZ.AI?)

Recommenders and Search Tools

Influence Flower (What are Influence Flowers?)
CORE Recommender (What is CORE?)
IArxiv Recommender (What is IArxiv?)

arXivLabs: experimental projects with community collaborators

arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website.

Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them.

Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs.

AltStyle によって変換されたページ (->オリジナル) /