658 datasets found

Keywords: Pre main sequence stars

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  • 361 Hertzsprung-Russell diagram in Orion

    We present a study of the Trapezium cluster in Orion. We analyze flux- calibrated Very Large Telescope/Multi-Unit Spectroscopic Explorer spectra of 361 stars to simultaneously...
  • Sz 65 and Sz 66 ALMA observations

    Substructures in disc density are ubiquitous in the bright extended discs that are observed with high resolution. These substructures are intimately linked to the physical...
  • Pre-main-sequence isochrones. II. SFR

    We have derived ages for 13 young (<30Myr) star-forming regions and find that they are up to a factor of 2 older than the ages typically adopted in the literature. This...
  • Pre-main-sequence isochrones. Pleiades benchmark

    We present a critical assessment of commonly used pre-main-sequence isochrones by comparing their predictions to a set of well-calibrated colour-magnitude diagrams of the...
  • Emission-Line Stars of the Orion Population

    This Catalog lists 735 pre-main sequence stars, members of the Orion Population, that have been observed with slit spectrographs or at equivalent resolution. It is intended to...
  • Catalog of Star-Forming Regions in the Galaxy

    This Catalog of Star-Forming Regions in the Galaxy contains coordinates and fluxes of young objects in the radio and infrared, as well as data on the radial velocities of...
  • General Catalogue of Herbig-Haro Objects

    Herbig-Haro (HH) objects are small-scale shock regions intimately associated with star forming regions. The present catalogue includes for all known HH objects: the HH number,...
  • Chandra X-ray flares in rho Ophiuchi

    We report on the results of a systematic study of X-ray flares from low-mass young stellar objects, using two deep exposure Chandra observations of the main region of the {rho}...
  • Photometry of 13 PMS stars in Cepheus OB3

    Results from optical CCD photometric observations of 13 pre-main-sequence stars collected during the period from February 2007 to November 2020 are presented. These stars are...
  • Phot. of PMS stars in the field of V733 Cep

    This paper reports results from the first long-term BV(RI)c photometric CCD observations of three variable pre-main-sequence stars collected during the period from February 2007...
  • Long-term BVRI photometry of 15 PMS stars

    This paper reports results from the multicolor photometric observations of 15 pre-main sequence stars collected in the period September 2010 - October 2017. The stars from our...
  • V977 Cep and V982 Cep long-term photometry

    Long-term BVRI photometric light curves of the pre-main sequence stars V977 Cep and V982 Cep during the period from 2000 October to 2016 August are presented. The stars are...
  • V350 Cep UBVRI long-term photometry

    Results from UBVRI optical photometric observations of the pre-main sequence star V350 Cep during the period 2004-2014 are presented. The star was discovered in 1977 due to its...
  • Long-term BVRI photometry of V2492 Cygni

    Results from BVRI photometric observations of the young stellar object V2492 Cyg collected during the period from August 2010 to December 2017 are presented. The star is located...
  • Long-Term Multicolour Photometry of YSOs

    Results from long-term multicolour optical photometric observations of the pre-main sequence stars FHO 26, FHO 27, FHO 28, FHO 29, and V1929 Cyg collected during the period from...
  • Long-term UBVRI photometry of GM Cep

    Results from UBVRI photometric observations of the pre-main sequence star GM Cephei obtained in the period April 2011 - August 2014 are reported in the paper. Presented data are...
  • Infrared photometric study of Herbig Ae/Be stars

    In this paper we collected almost all HAeBe stars known so far (253 sources in total) to photometrically study their infrared properties. The 2MASS, WISE, IRAS and AKARI data...
  • Ages and masses of NGC1893 PMS stars

    In this paper we continued our efforts to understand the star formation scenario in and around the young cluster NGC 1893. We used a sample of the young stellar sources (YSOs)...
  • Long-term BVRI photometry of V1704 Cygni

    Results from BVRI photometric observations of the pre-main sequence star V1704 Cyg collected during the time period from August 2010 to December 2017 are presented. The star is...
  • BVRI Photometry of 14 PMS stars

    New photometric data from CCD multicolour BVRI observations of 14 pre-main sequence stars during the period from 2013 April to 2015 September are presented. The studied objects...
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