Skip navigation
  • INAF logo
  • Home
  • Communities
    & Collections
  • Research outputs
  • Researchers
  • Organization units
  • Projects
  • Explore by
    • Research outputs
    • Researchers
    • Organization units
    • Projects
  • Login:
    • My DSpace
    • Receive email
      updates
    • Edit Account details
  • Italian
  • English

  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
  4. 1.01 Articoli in rivista
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/31968
Title: GIARPS High-resolution Observations of T Tauri stars (GHOsT). III. A pilot study of stellar and accretion properties
Authors: ALCALA', JUAN MANUEL 
Gangi, Manuele Ettore 
BIAZZO, Katia 
ANTONIUCCI, Simone 
FRASCA, Antonio 
GIANNINI, Teresa 
MUNARI, Ulisse 
NISINI, Brunella 
Harutyunyan, A.
Manara, C. F.
VITALI, Fabrizio 
Issue Date: 2021
Journal: ASTRONOMY & ASTROPHYSICS 
Number: 652
First Page: A72
Abstract: The mass-accretion rate, Ṁ<SUB>acc</SUB>, is a crucial parameter for the study of the evolution of accretion disks around young low-mass stellar objects (YSOs) and for planet formation studies. The Taurus star forming region (SFR) is rich in pre-main sequence stars, most of them of the T Tauri class. A variety of methodologies have been used in the past to measure mass accretion in samples of YSOs in Taurus, but despite being a general benchmark for star formation studies, a comprehensive and systematic analysis of the Taurus T Tauri population, where the stellar and accretion properties are derived homogeneously and simultaneously, is still missing. As part of the GIARPS High-resolution Observations of T Tauri stars (GHOsT) project, here we present a pilot study of the stellar and accretion properties of seven YSOs in Taurus using the spectrograph GIARPS at the Telescopio Nazionale Galileo. Contemporaneous low-resolution spectroscopic and photometric ancillary observations allow us to perform an accurate flux calibration of the high-resolution spectra. The simultaneity of the high-resolution, wide-band spectroscopic observations, from the optical to the near-infrared (NIR), the veiling measurements in such wide spectral range, and many well-calibrated emission line diagnostics allows us to derive the stellar and accretion properties of the seven YSOs in a homogeneous and self-consistent way. The procedures and methodologies presented here will be adopted in future works for the analysis of the complete GHOsT data set. We discuss the accretion properties of the seven YSOs in comparison with the 90% complete sample of YSOs in the Lupus SFR and investigate possibilities for the origin of the continuum excess emission in the NIR. <P />Based on observations made with the GIARPS instrument at the Telescopio Nazionale Galileo under program A36TAC_22 (PI: Antoniucci).
Acknowledgments: This work has been supported by PRIN-INAF-MAIN-STREAM 2017 “Protoplanetary disks seen through the eyes of new-generation instruments” and by PRIN-INAF 2019 “Spectroscopically tracing the disk dispersal evolution (STRADE)”.
URI: http://hdl.handle.net/20.500.12386/31968
URL: http://arxiv.org/abs/2106.10724v1
https://www.aanda.org/articles/aa/abs/2021/08/aa40918-21/aa40918-21.html
ISSN: 0004-6361
DOI: 10.1051/0004-6361/202140918
Bibcode ADS: 2021A&A...652A..72A
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

Files in This Item:
File Description SizeFormat
2106.10724_part1.pdfpart19.27 MBAdobe PDFView/Open
2106.10724_part2.pdfpart 23.29 MBAdobe PDFView/Open
aa40918-21 compr.pdfPdf editoriale8.98 MBAdobe PDFView/Open
Show full item record

Page view(s)

10
checked on Jun 24, 2022

Download(s)

8
checked on Jun 24, 2022

Google ScholarTM

Check

Altmetric

Altmetric


Items in DSpace are published in Open Access, unless otherwise indicated.


Explore by
  • Communities
    & Collections
  • Research outputs
  • Researchers
  • Organization units
  • Projects

Informazioni e guide per autori

https://openaccess-info.inaf.it: tutte le informazioni sull'accesso aperto in INAF

Come si inserisce un prodotto: le guide a OA@INAF

La Policy INAF sull'accesso aperto

Documenti e modelli scaricabili

Feedback
Built with DSpace-CRIS - Extension maintained and optimized by Logo 4SCIENCE