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- W3100213073 abstract "We present the results of a search for all embedded protostars with internal luminosities ≤1.0 L☉ in the full sample of nearby, low-mass star-forming regions surveyed by the Spitzer Space Telescope Legacy Project From Molecular Cores to Planet Forming Disks (c2d). The internal luminosity of a source, Lint, is the luminosity of the central source and excludes luminosity arising from external heating. On average, the Spitzer c2d data are sensitive to embedded protostars with Lint ⩾ 4 × 10−3(d/140 pc)2 L☉, a factor of 25 better than the sensitivity of the Infrared Astronomical Satellite (IRAS) to such objects. We present a set of selection criteria used to identify candidates from the Spitzer data and examine complementary data to decide whether each candidate is truly an embedded protostar. We find a tight correlation between the 70 μm flux and internal luminosity of a protostar, an empirical result based on both observations and detailed two-dimensional radiative transfer models of protostars. We identify 50 embedded protostars with Lint ⩽ 1.0 L☉; 15 have Lint ⩽ 0.1 L☉. The intrinsic distribution of source luminosities increases to lower luminosities. While we find sources down to the above sensitivity limit, indicating that the distribution may extend to luminosities lower than probed by these observations, we are able to rule out a continued rise in the distribution below Lint = 0.1 L☉. Between 75% and 85% of cores classified as starless prior to being observed by Spitzer remain starless to our luminosity sensitivity; the remaining 15%-25% harbor low-luminosity, embedded protostars. We compile complete spectral energy distributions for all 50 objects and calculate standard evolutionary signatures (Lbol, Tbol, and Lbol/Lsmm) and argue that these objects are inconsistent with the simplest picture of star formation, wherein mass accretes from the core onto the protostar at a constant rate." @default.
- W3100213073 created "2020-11-23" @default.
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- W3100213073 date "2008-11-01" @default.
- W3100213073 modified "2023-09-25" @default.
- W3100213073 title "Identifying the Low‐Luminosity Population of Embedded Protostars in the c2d Observations of Clouds and Cores" @default.
- W3100213073 cites W1666704755 @default.
- W3100213073 cites W1969306067 @default.
- W3100213073 cites W1977556740 @default.
- W3100213073 cites W1977772457 @default.
- W3100213073 cites W1981480720 @default.
- W3100213073 cites W1983270357 @default.
- W3100213073 cites W1987221041 @default.
- W3100213073 cites W1997171252 @default.
- W3100213073 cites W1999263013 @default.
- W3100213073 cites W1999430606 @default.
- W3100213073 cites W2006869439 @default.
- W3100213073 cites W2007012087 @default.
- W3100213073 cites W2009452458 @default.
- W3100213073 cites W2014746890 @default.
- W3100213073 cites W2015368600 @default.
- W3100213073 cites W2015586533 @default.
- W3100213073 cites W2019761418 @default.
- W3100213073 cites W2020282587 @default.
- W3100213073 cites W2024428998 @default.
- W3100213073 cites W2025895995 @default.
- W3100213073 cites W2028181754 @default.
- W3100213073 cites W2037131602 @default.
- W3100213073 cites W2039117391 @default.
- W3100213073 cites W2043250855 @default.
- W3100213073 cites W2043481642 @default.
- W3100213073 cites W2043898411 @default.
- W3100213073 cites W2043925078 @default.
- W3100213073 cites W2044669640 @default.
- W3100213073 cites W2045118947 @default.
- W3100213073 cites W2047978696 @default.
- W3100213073 cites W2049399517 @default.
- W3100213073 cites W2049862045 @default.
- W3100213073 cites W2049896064 @default.
- W3100213073 cites W2050474352 @default.
- W3100213073 cites W2055217089 @default.
- W3100213073 cites W2063189458 @default.
- W3100213073 cites W2074419187 @default.
- W3100213073 cites W2076980349 @default.
- W3100213073 cites W2083310271 @default.
- W3100213073 cites W2090373511 @default.
- W3100213073 cites W2090962673 @default.
- W3100213073 cites W2091044401 @default.
- W3100213073 cites W2092382662 @default.
- W3100213073 cites W2094730271 @default.
- W3100213073 cites W2098089453 @default.
- W3100213073 cites W2098683317 @default.
- W3100213073 cites W2099559854 @default.
- W3100213073 cites W2100758318 @default.
- W3100213073 cites W2114138332 @default.
- W3100213073 cites W2114624208 @default.
- W3100213073 cites W2120263335 @default.
- W3100213073 cites W2133531193 @default.
- W3100213073 cites W2137777144 @default.
- W3100213073 cites W2138348071 @default.
- W3100213073 cites W2140347367 @default.
- W3100213073 cites W2141409178 @default.
- W3100213073 cites W2145230401 @default.
- W3100213073 cites W2145782601 @default.
- W3100213073 cites W2148804397 @default.
- W3100213073 cites W2148869530 @default.
- W3100213073 cites W2150588658 @default.
- W3100213073 cites W2151139906 @default.
- W3100213073 cites W2157913834 @default.
- W3100213073 cites W2158184188 @default.
- W3100213073 cites W2163649759 @default.
- W3100213073 cites W2963763976 @default.
- W3100213073 cites W2964257340 @default.
- W3100213073 cites W2996078885 @default.
- W3100213073 cites W3098271229 @default.
- W3100213073 cites W3098641513 @default.
- W3100213073 cites W3098731431 @default.
- W3100213073 cites W3100126413 @default.
- W3100213073 cites W3100356824 @default.
- W3100213073 cites W3100982383 @default.
- W3100213073 cites W3101568116 @default.
- W3100213073 cites W3101778729 @default.
- W3100213073 cites W3101952921 @default.
- W3100213073 cites W3102036712 @default.
- W3100213073 cites W3102734874 @default.
- W3100213073 cites W3103279626 @default.
- W3100213073 cites W3103788972 @default.
- W3100213073 cites W3104206680 @default.
- W3100213073 cites W3105061634 @default.
- W3100213073 cites W3105135985 @default.
- W3100213073 cites W3105474327 @default.
- W3100213073 cites W3106480174 @default.