Large distance of epsilon Aurigae inferred from interstellar absorption and reddening

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10128505" target="_blank" >RIV/00216208:11320/12:10128505 - isvavai.cz</a>

Alternative codes found

RIV/67985815:_____/12:00388574

Result on the web

<a href="http://dx.doi.org/10.1051/0004-6361/201118567" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201118567</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/201118567" target="_blank" >10.1051/0004-6361/201118567</a>

Result language

angličtina

Original language name

Large distance of epsilon Aurigae inferred from interstellar absorption and reddening

Original language description

The long-period (P = 27.1 years) peculiar eclipsing binary epsilon Aur, which has recently completed its two year-long primary eclipse, has perplexed astronomers for over a century. The eclipse arises from the transit of a huge, cool and opaque, disk across the face of the F0 Iab star. One of the principal problems with understanding this binary is that the very small parallax of p = (1.53 +/- 1.29) mas, implying a distance range of d similar to (0.4-4.0) kpc, returned by a revised reduction of the HIPPARCOS satellite observations, is so uncertain that it precludes a trustworthy estimate of the luminosities and masses of the binary components. A reliable distance determination would help solve the nature of this binary and distinguish between competingmodels. A new approach is discussed here: we estimate the distance to epsilon Aur from the calibration of reddening and interstellar-medium gas absorption in the direction of the system. The distance to epsilon Aur is estimated from its

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BN - Astronomy and celestial mechanics, astrophysics

OECD FORD branch

—

Project

<a href="/en/project/GAP209%2F10%2F0715" target="_blank" >GAP209/10/0715: Accurate physical properties of hot stars based on binary and multiple star studies</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Astronomy and Astrophysics

ISSN

0004-6361

e-ISSN

—

Volume of the periodical

546

Issue of the periodical within the volume

říjen

Country of publishing house

DE - GERMANY

Number of pages

15

Pages from-to

—

UT code for WoS article

000310349100123

EID of the result in the Scopus database

—