Fitting procedure for estimating interstellar extinction at high galactic latitudes-Reference-Cited by-同舟云学术

Fitting procedure for estimating interstellar extinction at high galactic latitudes

Published:2021-01-01 Issue:1 Volume:30 Page:168-175
ISSN:2543-6376
Container-title:Open Astronomy
language:en
Short-container-title:

Author:

Avdeeva Aleksandra¹,Kovaleva Dana²,Malkov Oleg²,Nekrasov Alexey³

Affiliation:

1. Institute of Astronomy of the Russian Acad. Sci ., Moscow 119017, Russia ; HSE University , Moscow 101000, Russia

2. Institute of Astronomy of the Russian Acad. Sci ., Moscow 119017, Russia

3. Physics Faculty of Lomonosov Moscow State University , Moscow 119992, Russia ; Sternberg Astronomical Institute Lomonosov Moscow State University , Moscow 119992, Russia

Abstract

Abstract We determine the interstellar extinction in the selected high-latitude areas of the sky based on Gaia EDR3 astrometry and photometry and spectroscopic data from RAVE survey. We approximate the results with the cosecant law in each area thus deriving the parameters of the barometric formula for different lines of sight. The distribution of the parameters over the entire sky is described using spherical harmonics. As a result, we get a mathematical description of the interstellar visual extinction for different lines of sight and distances from the Sun which can be used for estimating interstellar extinction.

Publisher

Walter de Gruyter GmbH

Subject

Space and Planetary Science,Astronomy and Astrophysics

Link

https://www.degruyter.com/document/doi/10.1515/astro-2021-0022/pdf

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