The Balloon-borne Large Aperture Submillimeter Telescope (BLAST) 2005: A 4 sq. deg Galactic Plane Survey in Vulpecula (l=59)
We present the first results from a new 250, 350, and 500 micron Galactic Plane survey taken with the Balloon-borne Large-Aperture Submillimeter Telescope (BLAST) in 2005. This survey's primary goal is to identify and characterize high-mass proto-stellar objects (HMPOs). The region studied here...
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| Veröffentlicht in: | The Astrophysical journal 2008, Vol.681, p.428-452 |
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| creator | Chapin, E.L. Ade, P.A.R. Bock, J.J. Brunt, C. Devlin, M. J. Dicker, S. Griffin, M. Gundersen, J. O. Halpern, M. Hargrave, P. C. Hughes, D. H. Klein, J. Marsden, G. Martin, P. G. Mauskopf, P. Netterfield, C. B. Olmi, L. Pascale, E. Patanchon, G. Rex, M. Scott, D. Semisch, C. Truch, M. D. P. Tucker, C. Tucker, G. S. Viero, M. P. Wiebe, D. V. |
| description | We present the first results from a new 250, 350, and 500 micron Galactic Plane survey taken with the Balloon-borne Large-Aperture Submillimeter Telescope (BLAST) in 2005. This survey's primary goal is to identify and characterize high-mass proto-stellar objects (HMPOs). The region studied here covers 4 sq. deg near the open cluster NGC 6823 in the constellation Vulpecula (l=59). We find 60 compact sources (0) velocities combined with a variety of other velocity and morphological data in the literature. In total, 49 sources are associated with a molecular cloud complex encompassing NGC 6823 (distance ~2.3kpc), 10 objects with the Perseus Arm (~8.5kpc) and one object is probably in the outer Galaxy (~14kpc). Near NGC 6823, the inferred luminosities and masses of BLAST sources span ~40-10^4 L_\odot, and ~15-700 M_\odot, respectively. The mass spectrum is compatible with molecular gas masses in other high-mass star forming regions. Several luminous sources appear to be Ultra Compact HII regions powered by early B stars. However, many of the objects are cool, massive gravitationally-bound clumps with no obvious internal radiation from a protostar, and hence excellent HMPO candidates. |
| doi_str_mv | 10.1086/588544 |
| format | Article |
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J. ; Dicker, S. ; Griffin, M. ; Gundersen, J. O. ; Halpern, M. ; Hargrave, P. C. ; Hughes, D. H. ; Klein, J. ; Marsden, G. ; Martin, P. G. ; Mauskopf, P. ; Netterfield, C. B. ; Olmi, L. ; Pascale, E. ; Patanchon, G. ; Rex, M. ; Scott, D. ; Semisch, C. ; Truch, M. D. P. ; Tucker, C. ; Tucker, G. S. ; Viero, M. P. ; Wiebe, D. V.</creator><creatorcontrib>Chapin, E.L. ; Ade, P.A.R. ; Bock, J.J. ; Brunt, C. ; Devlin, M. J. ; Dicker, S. ; Griffin, M. ; Gundersen, J. O. ; Halpern, M. ; Hargrave, P. C. ; Hughes, D. H. ; Klein, J. ; Marsden, G. ; Martin, P. G. ; Mauskopf, P. ; Netterfield, C. B. ; Olmi, L. ; Pascale, E. ; Patanchon, G. ; Rex, M. ; Scott, D. ; Semisch, C. ; Truch, M. D. P. ; Tucker, C. ; Tucker, G. S. ; Viero, M. P. ; Wiebe, D. V.</creatorcontrib><description>We present the first results from a new 250, 350, and 500 micron Galactic Plane survey taken with the Balloon-borne Large-Aperture Submillimeter Telescope (BLAST) in 2005. This survey's primary goal is to identify and characterize high-mass proto-stellar objects (HMPOs). The region studied here covers 4 sq. deg near the open cluster NGC 6823 in the constellation Vulpecula (l=59). We find 60 compact sources (<60'' diameter) detected simultaneously in all three bands. Their spectral energy distributions (SEDs) are constrained through BLAST, IRAS, Spitzer MIPS, and MSX photometry, with inferred dust temperatures spanning ~12-40K assuming a dust emissivity index beta=1.5. The luminosity-to-mass ratio, a distance-independent quantity, spans ~0.2-130 L_\odot M_\odot^{-1}. Distances are estimated from coincident 13CO (1->0) velocities combined with a variety of other velocity and morphological data in the literature. In total, 49 sources are associated with a molecular cloud complex encompassing NGC 6823 (distance ~2.3kpc), 10 objects with the Perseus Arm (~8.5kpc) and one object is probably in the outer Galaxy (~14kpc). Near NGC 6823, the inferred luminosities and masses of BLAST sources span ~40-10^4 L_\odot, and ~15-700 M_\odot, respectively. The mass spectrum is compatible with molecular gas masses in other high-mass star forming regions. Several luminous sources appear to be Ultra Compact HII regions powered by early B stars. 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J.</creatorcontrib><creatorcontrib>Dicker, S.</creatorcontrib><creatorcontrib>Griffin, M.</creatorcontrib><creatorcontrib>Gundersen, J. O.</creatorcontrib><creatorcontrib>Halpern, M.</creatorcontrib><creatorcontrib>Hargrave, P. C.</creatorcontrib><creatorcontrib>Hughes, D. H.</creatorcontrib><creatorcontrib>Klein, J.</creatorcontrib><creatorcontrib>Marsden, G.</creatorcontrib><creatorcontrib>Martin, P. G.</creatorcontrib><creatorcontrib>Mauskopf, P.</creatorcontrib><creatorcontrib>Netterfield, C. B.</creatorcontrib><creatorcontrib>Olmi, L.</creatorcontrib><creatorcontrib>Pascale, E.</creatorcontrib><creatorcontrib>Patanchon, G.</creatorcontrib><creatorcontrib>Rex, M.</creatorcontrib><creatorcontrib>Scott, D.</creatorcontrib><creatorcontrib>Semisch, C.</creatorcontrib><creatorcontrib>Truch, M. D. P.</creatorcontrib><creatorcontrib>Tucker, C.</creatorcontrib><creatorcontrib>Tucker, G. S.</creatorcontrib><creatorcontrib>Viero, M. P.</creatorcontrib><creatorcontrib>Wiebe, D. V.</creatorcontrib><title>The Balloon-borne Large Aperture Submillimeter Telescope (BLAST) 2005: A 4 sq. deg Galactic Plane Survey in Vulpecula (l=59)</title><title>The Astrophysical journal</title><description>We present the first results from a new 250, 350, and 500 micron Galactic Plane survey taken with the Balloon-borne Large-Aperture Submillimeter Telescope (BLAST) in 2005. This survey's primary goal is to identify and characterize high-mass proto-stellar objects (HMPOs). The region studied here covers 4 sq. deg near the open cluster NGC 6823 in the constellation Vulpecula (l=59). We find 60 compact sources (<60'' diameter) detected simultaneously in all three bands. Their spectral energy distributions (SEDs) are constrained through BLAST, IRAS, Spitzer MIPS, and MSX photometry, with inferred dust temperatures spanning ~12-40K assuming a dust emissivity index beta=1.5. The luminosity-to-mass ratio, a distance-independent quantity, spans ~0.2-130 L_\odot M_\odot^{-1}. Distances are estimated from coincident 13CO (1->0) velocities combined with a variety of other velocity and morphological data in the literature. In total, 49 sources are associated with a molecular cloud complex encompassing NGC 6823 (distance ~2.3kpc), 10 objects with the Perseus Arm (~8.5kpc) and one object is probably in the outer Galaxy (~14kpc). Near NGC 6823, the inferred luminosities and masses of BLAST sources span ~40-10^4 L_\odot, and ~15-700 M_\odot, respectively. The mass spectrum is compatible with molecular gas masses in other high-mass star forming regions. Several luminous sources appear to be Ultra Compact HII regions powered by early B stars. 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V.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The Balloon-borne Large Aperture Submillimeter Telescope (BLAST) 2005: A 4 sq. deg Galactic Plane Survey in Vulpecula (l=59)</atitle><jtitle>The Astrophysical journal</jtitle><date>2008</date><risdate>2008</risdate><volume>681</volume><spage>428</spage><epage>452</epage><pages>428-452</pages><issn>0004-637X</issn><eissn>1538-4357</eissn><abstract>We present the first results from a new 250, 350, and 500 micron Galactic Plane survey taken with the Balloon-borne Large-Aperture Submillimeter Telescope (BLAST) in 2005. This survey's primary goal is to identify and characterize high-mass proto-stellar objects (HMPOs). The region studied here covers 4 sq. deg near the open cluster NGC 6823 in the constellation Vulpecula (l=59). We find 60 compact sources (<60'' diameter) detected simultaneously in all three bands. Their spectral energy distributions (SEDs) are constrained through BLAST, IRAS, Spitzer MIPS, and MSX photometry, with inferred dust temperatures spanning ~12-40K assuming a dust emissivity index beta=1.5. The luminosity-to-mass ratio, a distance-independent quantity, spans ~0.2-130 L_\odot M_\odot^{-1}. Distances are estimated from coincident 13CO (1->0) velocities combined with a variety of other velocity and morphological data in the literature. In total, 49 sources are associated with a molecular cloud complex encompassing NGC 6823 (distance ~2.3kpc), 10 objects with the Perseus Arm (~8.5kpc) and one object is probably in the outer Galaxy (~14kpc). Near NGC 6823, the inferred luminosities and masses of BLAST sources span ~40-10^4 L_\odot, and ~15-700 M_\odot, respectively. The mass spectrum is compatible with molecular gas masses in other high-mass star forming regions. Several luminous sources appear to be Ultra Compact HII regions powered by early B stars. 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| subjects | Astrophysics Cosmology and Extra-Galactic Astrophysics Physics Sciences of the Universe |
| title | The Balloon-borne Large Aperture Submillimeter Telescope (BLAST) 2005: A 4 sq. deg Galactic Plane Survey in Vulpecula (l=59) |
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