Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Contrast sensitivities in the Gaia Data Release 2
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för astronomi.
Rekke forfattare: 22019 (engelsk)Inngår i: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 621, artikkel-id A86Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The source detection sensitivity of Gaia is reduced near sources. To characterise this contrast sensitivity is important for understanding the completeness of the Gaia data products, in particular when evaluating source confusion in lower resolution surveys such as photometric monitoring for transits. Here, we statistically evaluate the catalogue source density to determine the Gaia Data Release 2 source detection sensitivity as a function of angular separation and brightness ratio from a bright source. The contrast sensitivity from similar to 0.4 '' out to 12 '' ranges in Delta G = 0-14 mag. We find the derived contrast sensitivity to be robust with respect to target brightness, colour, source density, and Gaia scan coverage.

sted, utgiver, år, opplag, sider
2019. Vol. 621, artikkel-id A86
Emneord [en]
techniques: photometric, methods: data analysis, catalogs
HSV kategori
Identifikatorer
URN: urn:nbn:se:su:diva-165664DOI: 10.1051/0004-6361/201834321ISI: 000455426300001OAI: oai:DiVA.org:su-165664DiVA, id: diva2:1286286
Tilgjengelig fra: 2019-02-06 Laget: 2019-02-06 Sist oppdatert: 2022-02-26bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Andre lenker

Forlagets fulltekst

Person

Brandeker, Alexis

Søk i DiVA

Av forfatter/redaktør
Brandeker, Alexis
Av organisasjonen
I samme tidsskrift
Astronomy and Astrophysics

Søk utenfor DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 36 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf