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Title: LUPUS I observations from the 2010 flight of the Balloon-borne large aperture submillimeter telescope for polarimetry

The Balloon-borne Large Aperture Submillimeter Telescope for Polarimetry (BLASTPol) was created by adding polarimetric capability to the BLAST experiment that was flown in 2003, 2005, and 2006. BLASTPol inherited BLAST's 1.8 m primary and its Herschel/SPIRE heritage focal plane that allows simultaneous observation at 250, 350, and 500 μm. We flew BLASTPol in 2010 and again in 2012. Both were long duration Antarctic flights. Here we present polarimetry of the nearby filamentary dark cloud Lupus I obtained during the 2010 flight. Despite limitations imposed by the effects of a damaged optical component, we were able to clearly detect submillimeter polarization on degree scales. We compare the resulting BLASTPol magnetic field map with a similar map made via optical polarimetry. (The optical data were published in 1998 by J. Rizzo and collaborators.) The two maps partially overlap and are reasonably consistent with one another. We compare these magnetic field maps to the orientations of filaments in Lupus I, and we find that the dominant filament in the cloud is approximately perpendicular to the large-scale field, while secondary filaments appear to run parallel to the magnetic fields in their vicinities. This is similar to what is observed in Serpens South via near-IRmore » polarimetry, and consistent with what is seen in MHD simulations by F. Nakamura and Z. Li.« less
Authors:
; ;  [1] ; ; ;  [2] ; ; ;  [3] ; ; ; ;  [4] ;  [5] ;  [6] ;  [7] ;  [8] ; ;  [9] ;  [10] more »; « less
  1. Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) and Department of Physics and Astronomy, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208 (United States)
  2. Cardiff University, School of Physics and Astronomy, Queens Buildings, The Parade, Cardiff, CF24 3AA (United Kingdom)
  3. Department of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, PA 19104 (United States)
  4. Department of Astronomy and Astrophysics, University of Toronto, 50 St. George Street Toronto, ON M5S 3H4 (Canada)
  5. XMM SOC, ESAC, Apartado 78, E-28691 Villanueva de la Cañada, Madrid (Spain)
  6. Department of Physics, Nagoya University, Nagoya 464-8602 (Japan)
  7. Department of Physics, University of Miami, 1320 Campo Sano Drive, Coral Gables, FL 33146 (United States)
  8. Department of Physics, Brown University, 182 Hope Street, Providence, RI 02912 (United States)
  9. California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125 (United States)
  10. University of Puerto Rico, Rio Piedras Campus, Physics Department, Box 23343, UPR station, San Juan (Puerto Rico)
Publication Date:
OSTI Identifier:
22357272
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal; Journal Volume: 784; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ANTARCTIC REGIONS; APERTURES; APPROXIMATIONS; BALLOONS; COMPARATIVE EVALUATIONS; EXPLOSIONS; FILAMENTS; MAGNETIC FIELDS; MAGNETOHYDRODYNAMICS; MAPS; POLARIMETRY; POLARIZATION; SIMULATION; STARS; TELESCOPES