Published November 10, 2014 | Version v1
Journal article

NEW CANDIDATE ERUPTIVE YOUNG STARS IN LYNDS 1340

  • 1. Konkoly Observatory, H-1121 Budapest, Konkoly Thege út 15-17 (Hungary)
  • 2. Department of Astronomy and Department of Planetary Sciences, The University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721 (United States)
  • 3. California Institute of Technology, 1200 East California Avenue, Pasadena, CA 91125 (United States)
  • 4. Thüringer Landessternwarte Tautenburg, Sternwarte 5, D-07778 Tautenburg (Germany)
  • 5. Astronomy Department, Adler Planetarium, 1300 South Lake Shore Drive, Chicago, IL 60605 (United States)

Description

We report on the discovery of three candidate eruptive young stars, found during our comprehensive multi-wavelength study of the young stellar population of the dark cloud L1340. These stars are as follows. (1) IRAS 02224+7227 (2MASS 02270555+7241167, HH 487S) exhibited FUor-like spectrum in our low-resolution optical spectra. The available photometric data restrict its luminosity to 23 L < L bol < 59 L . (2) 2MASS 02263797+7304575, identified as a classical T Tauri star during our Hα survey, exhibited an EXor-type brightening in 2005 November at the time of the Sloan Digital Sky Survey observations of the region. (3) 2MASS 02325605+7246055, a low-mass embedded young star, associated with a fan-shaped infrared nebula, underwent an outburst between the DSS 1 and DSS 2 surveys, leading to the appearance of a faint optical nebula. Our [S II] and Hα images, as well as the Spitzer Infrared Array Camera 4.5 μm images, revealed Herbig-Haro objects associated with this star. Our results suggest that amplitudes and timescales of outbursts do not necessarily correlate with the evolutionary stage of the stars

Availability note (English)

Available from http://dx.doi.org/10.1088/2041-8205/795/2/L26

Additional details

Identifiers

Publishing Information

Journal Title
Astrophysical Journal Letters
Journal Volume
795
Journal Issue
2
Journal Page Range
[6 p.]
ISSN
2041-8205

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
46069826
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
BLOWERS; CAMERAS; HERBIG-HARO OBJECTS; IMAGES; INFRARED SPECTRA; LUMINOSITY; NEBULAE; PROTOSTARS; RESOLUTION; STAR EVOLUTION; T TAURI STARS
Descriptors DEC
BINARY STARS; ERUPTIVE VARIABLE STARS; EVOLUTION; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; SPECTRA; STARS; VARIABLE STARS