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dc.contributor.author
Pogodin, M. A.
dc.contributor.author
Hubrig, S.
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Yudin, R. V.
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Schöller, M.
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Gonzalez, Jorge Federico
dc.contributor.author
Stelzer, B.
dc.date.available
2016-04-01T21:41:13Z
dc.date.issued
2012-01
dc.identifier.citation
Pogodin, M. A.; Hubrig, S.; Yudin, R. V.; Schöller, M.; Gonzalez, Jorge Federico; et al.; Measuring the mass accretion rates of Herbig Ae/Be stars with X-shooter; Wiley; Astronomische Nachrichten; 333; 7; 1-2012; 564-612
dc.identifier.issn
0004-6337
dc.identifier.uri
http://hdl.handle.net/11336/4995
dc.description.abstract
We present the results of our observations of eight magnetic Herbig Ae/Be stars obtained with the X-shooter spectrograph mounted on UT2 at the VLT. X-shooter provides a simultaneous, medium-resolution and high-sensitivity spectrum over the entire wavelength range from 300 to 2500 nm. We estimate the mass accretion rates (Ṁacc) of the targets from 13 different spectral diagnostics using empiric calibrations derived previously for T Tauri-type stars and brown dwarfs. We have estimated the mass accretion rates of our targets, which range from 2 × 10–9 to 2 × 10–7 M⊙ yr–1. Furthermore, we have found accretion rate variability with amplitudes of 0.10–0.40 dex taking place on time scales from one day to tens of days. Additional future night-to-night observations need to be carried out to investigate the character of Ṁacc variability in details. Our study shows that the majority of the calibration relations can be applied to Herbig Ae/Be stars, but several of them need to be re-calibrated on the basis of new spectral data for a larger number of Herbig Ae/Be stars (© 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Spectroscopy
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Accretion Disks
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Pre-Main Sequence
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Circumstellar Matter
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Stars: Magnetic Fields
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Astronomía
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Measuring the mass accretion rates of Herbig Ae/Be stars with X-shooter
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-05-06 15:52:43.262787-03
dc.journal.volume
333
dc.journal.number
7
dc.journal.pagination
564-612
dc.journal.pais
Alemania
dc.journal.ciudad
Weinheim
dc.description.fil
Fil: Pogodin, M. A.. Central Astronomical Observatory at Pulkovo; Rusia. Isaac Newton Institute of Chile; Rusia
dc.description.fil
Fil: Hubrig, S.. Leibniz-Institut für Astrophysik; Alemania
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Fil: Yudin, R. V.. Central Astronomical Observatory at Pulkovo; Rusia. Isaac Newton Institute of Chile; Rusia
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Fil: Schöller, M.. European Southern Observatory; Alemania
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Fil: Gonzalez, Jorge Federico. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico San Juan. Instituto de Ciencias Astronomicas de la Tierra y del Espacio; Argentina
dc.description.fil
Fil: Stelzer, B.. Istituto Nazionale Di Astrofisica. Osservatorio Astronomico Di Palermo; Italia
dc.journal.title
Astronomische Nachrichten
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/asna.201211706/abstract
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/asna.201211706
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/10.1002/asna.201211706
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