The spitzer c2d survey of large, nearby, interstellar clouds. Iv Lupus observed with MIPS
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The spitzer c2d survey of large, nearby, interstellar clouds. Iv Lupus observed with MIPS. / Chapman, Nicholas L.; Lai, Shih Ping; Mundy, Lee G.; Evans, Neal J.; Brooke, Timothy Y.; Cieza, Lucas A.; Spiesman, William J.; Rebull, Luisa M.; Stapelfeldt, Karl R.; Noriega-Crespo, Alberto; Lanz, Lauranne; Allen, Lori E.; Blake, Geoffrey A.; Bourke, Tyler L.; Harvey, Paul M.; Huard, Tracy L.; Jørgensen, Jes K.; Koerner, David W.; Myers, Philip C.; Padgett, Deborah L.; Sargent, Annelia I.; Teuben, Peter; Van Dishoeck, Ewine F.; Wahhaj, Zahed; Young, Kaisa E.
In: Astrophysical Journal, Vol. 667, No. 1 I, 01.01.2007, p. 288-302.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - The spitzer c2d survey of large, nearby, interstellar clouds. Iv Lupus observed with MIPS
AU - Chapman, Nicholas L.
AU - Lai, Shih Ping
AU - Mundy, Lee G.
AU - Evans, Neal J.
AU - Brooke, Timothy Y.
AU - Cieza, Lucas A.
AU - Spiesman, William J.
AU - Rebull, Luisa M.
AU - Stapelfeldt, Karl R.
AU - Noriega-Crespo, Alberto
AU - Lanz, Lauranne
AU - Allen, Lori E.
AU - Blake, Geoffrey A.
AU - Bourke, Tyler L.
AU - Harvey, Paul M.
AU - Huard, Tracy L.
AU - Jørgensen, Jes K.
AU - Koerner, David W.
AU - Myers, Philip C.
AU - Padgett, Deborah L.
AU - Sargent, Annelia I.
AU - Teuben, Peter
AU - Van Dishoeck, Ewine F.
AU - Wahhaj, Zahed
AU - Young, Kaisa E.
PY - 2007/1/1
Y1 - 2007/1/1
N2 - We present maps of 7.78 deg2 of the Lupus molecular cloud complex at 24, 70, and 160 μm. They were made with the Spitzer Space Telescope Multiband Imaging Photometer for Spitzer (MIPS) instrument as part of the Spitzer Legacy Program "From Molecular Cores to Planet-Forming Disks" (c2d). The maps cover three separate regions in Lupus, denoted I, III, and IV. We discuss the c2d pipeline and how our data processing differs from it. We compare source counts in the three regions with two other data sets and predicted star counts from the Wainscoat model. This comparison shows the contribution from background galaxies in Lupus I. We also create two color-magnitude diagrams using the 2MASS and MIPS data. From these results, we can identify background galaxies and distinguish them from probable young stellar objects. The sources in our catalogs are classified based on their spectral energy distribution (SED) from 2MASS and Spitzer wavelengths to create a sample of young stellar object candidates. From 2M ASS data, we create extinction maps for each region and note a strong correspondence between the extinction and the 160 μm emission. The masses we derived in each Lupus cloud from our extinction maps are compared to masses estimated from 13CO and C18 O and found to be similar to our extinction masses in some regions, but significantly different in others. Finally, based on our color-magnitude diagrams, we selected 12 of our reddest candidate young stellar objects for individual discussion. Five of the 12 appear to be newly discovered YSOs.
AB - We present maps of 7.78 deg2 of the Lupus molecular cloud complex at 24, 70, and 160 μm. They were made with the Spitzer Space Telescope Multiband Imaging Photometer for Spitzer (MIPS) instrument as part of the Spitzer Legacy Program "From Molecular Cores to Planet-Forming Disks" (c2d). The maps cover three separate regions in Lupus, denoted I, III, and IV. We discuss the c2d pipeline and how our data processing differs from it. We compare source counts in the three regions with two other data sets and predicted star counts from the Wainscoat model. This comparison shows the contribution from background galaxies in Lupus I. We also create two color-magnitude diagrams using the 2MASS and MIPS data. From these results, we can identify background galaxies and distinguish them from probable young stellar objects. The sources in our catalogs are classified based on their spectral energy distribution (SED) from 2MASS and Spitzer wavelengths to create a sample of young stellar object candidates. From 2M ASS data, we create extinction maps for each region and note a strong correspondence between the extinction and the 160 μm emission. The masses we derived in each Lupus cloud from our extinction maps are compared to masses estimated from 13CO and C18 O and found to be similar to our extinction masses in some regions, but significantly different in others. Finally, based on our color-magnitude diagrams, we selected 12 of our reddest candidate young stellar objects for individual discussion. Five of the 12 appear to be newly discovered YSOs.
KW - Infrared: stars
KW - ISM: clouds
KW - Stars: formation
UR - http://www.scopus.com/inward/record.url?scp=35348860069&partnerID=8YFLogxK
U2 - 10.1086/520790
DO - 10.1086/520790
M3 - Journal article
AN - SCOPUS:35348860069
VL - 667
SP - 288
EP - 302
JO - Astrophysical Journal
JF - Astrophysical Journal
SN - 0004-637X
IS - 1 I
ER -
ID: 234018121