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Title: IDENTIFYING HIGH-METALLICITY M GIANTS AT INTRAGROUP DISTANCES WITH SLOAN DIGITAL SKY SURVEY

Abstract

Tidal stripping and three-body interactions with the central supermassive black hole may eject stars from the Milky Way. These stars would comprise a set of 'intragroup' stars that trace the past history of interactions in our galactic neighborhood. Using the Sloan Digital Sky Survey DR7, we identify candidate solar-metallicity red giant intragroup stars using color cuts that are designed to exclude nearby M and L dwarfs. We present 677 intragroup candidates that are selected between 300 kpc and 2 Mpc, and are either the reddest intragroup candidates (M7-M10) or are L dwarfs at larger distances than previously detected.

Authors:
;  [1];  [2]; ;  [3]; ;  [4]; ;  [5]
  1. Department of Physics and Astronomy, Vanderbilt University, Nashville, TN 37235 (United States)
  2. Department of Astronomy, Case Western Reserve University, Cleveland, OH 44106 (United States)
  3. Department of Physics and Astronomy, Youngstown State University, Youngstown, OH 44555 (United States)
  4. Department of Astronomy and Astrophysics, Pennsylvania State University, University Park, PA 16802 (United States)
  5. Infrared Processing and Analysis Center, MS 100-22, California Institute of Technology, Pasadena, CA 91125 (United States)
Publication Date:
OSTI Identifier:
22034455
Resource Type:
Journal Article
Journal Name:
Astronomical Journal (New York, N.Y. Online)
Additional Journal Information:
Journal Volume: 143; Journal Issue: 6; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1538-3881
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ASTRONOMY; ASTROPHYSICS; BLACK HOLES; COLOR; DISTANCE; GIANT STARS; METALS; MILKY WAY; THREE-BODY PROBLEM

Citation Formats

Palladino, Lauren E., Holley-Bockelmann, Kelly, Morrison, Heather, Durrell, Patrick R., Feldmeier, John, Ciardullo, Robin, Wade, Richard A., Davy Kirkpatrick, J., and Lowrance, Patrick, E-mail: lauren.e.palladino.1@vanderbilt.edu, E-mail: k.holley@vanderbilt.edu. IDENTIFYING HIGH-METALLICITY M GIANTS AT INTRAGROUP DISTANCES WITH SLOAN DIGITAL SKY SURVEY. United States: N. p., 2012. Web. doi:10.1088/0004-6256/143/6/128.
Palladino, Lauren E., Holley-Bockelmann, Kelly, Morrison, Heather, Durrell, Patrick R., Feldmeier, John, Ciardullo, Robin, Wade, Richard A., Davy Kirkpatrick, J., & Lowrance, Patrick, E-mail: lauren.e.palladino.1@vanderbilt.edu, E-mail: k.holley@vanderbilt.edu. IDENTIFYING HIGH-METALLICITY M GIANTS AT INTRAGROUP DISTANCES WITH SLOAN DIGITAL SKY SURVEY. United States. doi:10.1088/0004-6256/143/6/128.
Palladino, Lauren E., Holley-Bockelmann, Kelly, Morrison, Heather, Durrell, Patrick R., Feldmeier, John, Ciardullo, Robin, Wade, Richard A., Davy Kirkpatrick, J., and Lowrance, Patrick, E-mail: lauren.e.palladino.1@vanderbilt.edu, E-mail: k.holley@vanderbilt.edu. Fri . "IDENTIFYING HIGH-METALLICITY M GIANTS AT INTRAGROUP DISTANCES WITH SLOAN DIGITAL SKY SURVEY". United States. doi:10.1088/0004-6256/143/6/128.
@article{osti_22034455,
title = {IDENTIFYING HIGH-METALLICITY M GIANTS AT INTRAGROUP DISTANCES WITH SLOAN DIGITAL SKY SURVEY},
author = {Palladino, Lauren E. and Holley-Bockelmann, Kelly and Morrison, Heather and Durrell, Patrick R. and Feldmeier, John and Ciardullo, Robin and Wade, Richard A. and Davy Kirkpatrick, J. and Lowrance, Patrick, E-mail: lauren.e.palladino.1@vanderbilt.edu, E-mail: k.holley@vanderbilt.edu},
abstractNote = {Tidal stripping and three-body interactions with the central supermassive black hole may eject stars from the Milky Way. These stars would comprise a set of 'intragroup' stars that trace the past history of interactions in our galactic neighborhood. Using the Sloan Digital Sky Survey DR7, we identify candidate solar-metallicity red giant intragroup stars using color cuts that are designed to exclude nearby M and L dwarfs. We present 677 intragroup candidates that are selected between 300 kpc and 2 Mpc, and are either the reddest intragroup candidates (M7-M10) or are L dwarfs at larger distances than previously detected.},
doi = {10.1088/0004-6256/143/6/128},
journal = {Astronomical Journal (New York, N.Y. Online)},
issn = {1538-3881},
number = 6,
volume = 143,
place = {United States},
year = {2012},
month = {6}
}