Josh Walawender, Grace Wolf-Chase, Michael Smutko, Joann Olinger-Luscusk, Gerald Moriarty-Schieven

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1 Scopus citations


We have searched the L1340 A, B, and C clouds for shocks from protostellar outflows using the H2 2.122 μm near-infrared line as a shock tracer. Substantial outflow activity has been found in each of the three regions of the cloud (L1340 A, L1340 B, and L1340 C). We find 42 distinct shock complexes (16 in L1340 A, 11 in L1340 B, and 15 in L1340 C). We were able to link 17 of those shock complexes into 12 distinct outflows and identify candidate source stars for each. We examine the properties (A V, T bol, and L bol) of the source protostars and compare them to the properties of the general population of Class 0/I and flat spectral energy distribution protostars and find that there is an indication, albeit at low statistical significance, that the outflow-driving protostars are drawn from a population with lower A V, higher L bol, and lower T bol than the general population of protostars.

Original languageEnglish (US)
Article number184
JournalAstrophysical Journal
Issue number2
StatePublished - Dec 1 2016


  • HerbigHaro objects
  • ISM: jets and outflows
  • stars: formation
  • stars: jets
  • stars: pre-main sequence
  • stars: protostars

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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