2019A&A...631A..65C

Query : 2019A&A...631A..65C

2019A&A...631A..65C - Astronomy and Astrophysics, volume 631A65-65 (2019/11-1)

Mass of dusty clumps with temperature and density structure.

CESARONI R.

Abstract (from CDS):

We consider a dusty clump in two cases of spherical and cylindrical symmetry to investigate the effect of temperature and density gradients on the observed flux density. Conversely, we evaluate how the presence of these gradients affects the calculation of the clump mass from the observed flux. We provide approximate expressions relating flux density and mass in the optically thick and thin limits and in the Rayleigh-Jeans regime, and we discuss the reliability of these expressions by comparing them to the outcome of a numerical code. Finally, we present the application of our calculations to three examples taken from the literature, which shows how the correction introduced after taking into account temperature and density gradients may affect our conclusions on the stability of the clumps.

Abstract Copyright: © ESO 2019

Journal keyword(s): radiation mechanisms: thermal - radiative transfer - methods: analytical - dust, extinction - radio continuum: ISM

Simbad objects: 1

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Number of rows : 1

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	IRAS 18449-0115	cor	18 47 34.27	-01 12 43.2						~	430	1

Query : 2019A&A...631A..65C

Basic data :

IRAS 18449-0115 -- Dense Core
Other object types:	`HII (2009A&A,[BNM96],...)`, `Rad (CORNISH,F3R,...)`, `Mas (2011MNRAS,[ARM2000],...)`, `smm (AGAL,JCMTLSP,...)`, `cor (2014A&A,[UFM2015],...)`, `mm (2012ApJ,BGPS,...)`, `MIR (AKARI,MSX5C,...)`, `Y*O (2009A&A)`, `MoC ([HLB98])`, `IR (IRAS)`
ICRS coord. (ep=J2000) :	`18 47 34.27 -01 12 43.2 (Radio) [ 1000 1000 90 ] D 1990ApJS...74..181Z`
FK4 coord. (ep=B1950 eq=1950) :	`18 44 59.07 -01 16 04.2 [ 1000 1000 90 ]`
Gal coord. (ep=J2000) :	`031.41247 +00.30750 [ 1000 1000 90 ]`
VLSR :	`97.4 95.3 99.5 [0.4] (Rad)` `2015MNRAS.452.4029U`
Angular size (arcmin):	`1.23 0.60 40 (smm) D` `2014A&A...568A..41U`

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`AGAL G031.412+00.307`	`JCMTSE J184734.2-011244`	`[BK2004] J184734.2-011246`	`[SHK2000] 18449-0115`
`AKARI-IRC-V1 J1847337-011235`	`JCMTSF J184734.2-011244`	`[BNM96] 031.415+0.306`	`[SKH2002] 31.41+0.31`
`BGPS G031.414+00.307`	`JPS G031.412+00.307`	`[CUS2014] G031.4120+0.3076`	`[SSS2011] BGPS G31.411+0.310`
`BGPSv2 G031.411+00.307`	`MSX5C G031.4138+00.3090`	`[ERG2015] 5497`	`[SVG93] 184459.0-011619`
`CORNISH G031.4130+00.3065`	`MSX6C G031.4134+00.3092`	`[HBM2005] G31.41+0.30`	`[UFM2015] G031.413+00.306`
`F3R 1091`	`NVSS J184734-011242`	`[HC96] G31.41+0.31`	`[WAM82] 031.413+0.307`
`GAL 031.41+00.31`	`RFS 529`	`[HCS79] B184501.0-011606.7`	`[WBH2005] G031.412+0.307`
`GAL 031.4+00.3`	`WISE J184734.26-011240.6`	`[HLB98] SEST 178`	`[WBH98] 18449-0115`
`GPSR5 31.412+0.307`	`[ADP79] 031.411+0.309`	`[KJB2003] G31.412+0.308`	`[WC89] 031.41+0.31`
`GPSR 031.413+0.307`	`[ARM2000] G031.412+00.307`	`[L89b] 31.411+00.309`	`[WHR97] 18449-0115`
`IRAS 18449-0115`	`[BE83] Maser 031.41+00.31`	`[MPT2015] G031.413+00.306`	`[WWB83] G031.41+0.31`
`JCMTLSP J184734.3-011245`	`[BJB2016] G031.412+00.307`	`[PCC93] 308`	`[WWS2012] G031.41+00.30`

References (430 between 1850 and 2026) (Total 430)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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Data at NED - NASA/IPAC Extragalactic Database : IRAS 18449-0115

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`AKARI-IRC-V1 J1847337-011235`	`F3R 1091`	`IRAS 18449-0115`	`MSX5C G031.4138+00.3090`	`MSX6C G031.4134+00.3092`
`NVSS J184734-011242`	`WISE J184734.26-011240.6`

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