Pre-main-sequence phase of stellar evolution is accompanied with the mass loss from young stars caused by the interaction between star and its surrounding environment. Mass loss in the form of different kinds of winds plays an important role in forming the emission spectra of stars. In this study we investigate the origin of the line He I 10830 Å in biconical winds of Herbig Ae/Be stars. We consider two types of the wind: a hot wind (Te=106K) , and a“warm” wind (Te=9000-15000K) which is ionized by an X-ray emission. Calculations were performed using the microphysics code CLOUDY, version 13.03. It is shown, that “warm” wind model can explain the observed helium 10830 Å line profiles.
Original languageEnglish
Title of host publicationStars: From Collapse to Collapse, Proceedings of a conference held at Special Astrophysical Observatory, Nizhny Arkhyz, Russia 3-7 October 2016
PublisherAstronomical Society of the Pacific
Pages36
StatePublished - 2017
EventStars: From Collapse to Collapse - Специальная Астрофизическая Обсерватория, Нижний Архыз, Russian Federation
Duration: 3 Oct 2016 → 7 Oct 2016
https://www.sao.ru/

Publication series

NameAstronomical Society of the Pacific Conference Series
Volume510

Conference

ConferenceStars: From Collapse to Collapse
Country/TerritoryRussian Federation
CityНижний Архыз
Period3/10/16 → 7/10/16
Internet address

ID: 97764344