Photometric Stromgren-H beta Quantification for O and B Stars of Luminosity Class V

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F17%3A00099901" target="_blank" >RIV/00216224:14310/17:00099901 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/1538-3873/aa8cbd" target="_blank" >http://dx.doi.org/10.1088/1538-3873/aa8cbd</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1538-3873/aa8cbd" target="_blank" >10.1088/1538-3873/aa8cbd</a>

Result language

angličtina

Original language name

Photometric Stromgren-H beta Quantification for O and B Stars of Luminosity Class V

Original language description

In any photometric system, the relationship between the spectral type and the intrinsic colors is fundamental for the photometric stellar classification and for a reliable derivation of stellar parameters. Such relationships are being constantly verified and improved based on larger and better samples. The capability of the Stromgren-H beta photometry to provide reddening-free quantities allows the classification of reddened stars over the entire spectral sequence. However, a detailed consistent tabulation of the uvby beta quantities for the O-B9 part of the main sequence is currently warranted. We combine spectral types and photometry from the literature to provide a new empirical tabulation of the intrinsic color b - y, color differences c(1), m(1), [c(1)] and [m(1)] and the H beta index for main-sequence (luminosity class V) stars of spectral types O4.5 through B9.5 in terms of spectral sub-types. Our survey is based on more than 1400 stars. We use the established c(1) versus b - y intrinsic line and the accepted reddening slopes to obtain dereddened quantities and then calculate their median values as a function of the spectral sub-type. The classification ability of the system in this spectral range is reliable and the photometric quantities are not affected by the stellar rotation.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10308 - Astronomy (including astrophysics,space science)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

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

Name of the periodical

Publications of the Astronomical Society of the Pacific

ISSN

0004-6280

e-ISSN

—

Volume of the periodical

129

Issue of the periodical within the volume

981

Country of publishing house

GB - UNITED KINGDOM

Number of pages

10

Pages from-to

114201-114210

UT code for WoS article

000412416800001

EID of the result in the Scopus database

—