2005ApJ...635..452D


Query : 2005ApJ...635..452D

2005ApJ...635..452D - Astrophys. J., 635, 452-465 (2005/December-2)

Observations and modeling of the 2-25 µm emission from high-mass protostellar object candidates.

DE BUIZER J.M., OSORIO M. and CALVET N.

Abstract (from CDS):

This is a report on detailed modeling of young high-mass protostellar candidates during their most embedded and obscured phases. We performed narrowband mid-infrared imaging of three candidate high-mass protostellar objects in G11.94-0.62, G29.96-0.02, and G45.07+0.13 at Gemini Observatory using the Thermal-Region Camera and Spectrograph (T-ReCS). The sources were imaged through up to 11 narrowband filters, sampling their SEDs over the entire 2-25 µm infrared range. For the first time, we have fit the observed SEDs of massive protostars with models that take into account departures from spherical symmetry in the infalling envelopes. In this way, we have been able to derive from the models the detailed physical parameters for these earliest stages of massive stellar life. Our detailed modeling suggests that massive star formation can proceed in a way very similar to the formation of low-mass stars.

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Journal keyword(s): Stars: Circumstellar Matter - Infrared: ISM - ISM: individual (G11.94-0.62) - ISM: Individual: Alphanumeric: G29.96-0.02 - ISM: Individual: Alphanumeric: G45.07+0.13 - Stars: Early-Type - Stars: Formation - Stars: Pre-Main-Sequence

Nomenclature: Fig.3, Table 4: [DRT2003] G45.07+0.13 N (Nos 4-7) added.

Simbad objects: 27

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Number of rows : 27
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 RAFGL 5123 Y*O 04 31 34.07736 +18 08 04.9020           K3V/M3III 900 0
2 [WB2006] G305A Mas 13 11 14.4 -62 34 26           ~ 20 1
3 * alf Cen ** 14 39 36.50 -60 50 02.3   0.4 -0.1     G2V+K1V 1031 0
4 DRT03 G11.94-0.62 1 IR 18 14 00.29 -18 53 23.1           ~ 3 0
5 DRT03 G45.07+0.13 1 IR 18 14 00.29 -18 53 23.1           ~ 3 0
6 DRT03 G11.94-0.62 2 IR 18 14 00.8430 -18 53 22.800           ~ 3 0
7 DRT03 G11.94-0.62 3 IR 18 14 00.9900 -18 53 18.600           ~ 3 0
8 CORNISH G011.9368-00.6158 HII 18 14 01.0 -18 53 23           ~ 88 1
9 DRT03 G11.94-0.62 4 IR 18 14 01.0100 -18 53 25.900           ~ 3 0
10 DRT03 G11.94-0.62 5 IR 18 14 01.0500 -18 53 23.500           ~ 3 0
11 GRS G011.94 -00.62 HII 18 14 01.3 -18 53 34           ~ 11 0
12 DRT03 G11.94-0.62 6 IR 18 14 01.4230 -18 53 26.900           ~ 3 0
13 * lam Sgr PM* 18 27 58.2407185 -25 25 18.114589 4.75 3.85 2.81 2.06 1.50 K1IIIb 290 0
14 NAME G29.96-0.02 HMPO cor 18 46 04.0 -02 39 22           ~ 46 0
15 CORNISH G029.9559-00.0168 Y*O 18 46 04.18 -02 39 21.3           ~ 385 0
16 * ksi02 Sgr * 18 57 43.8001892867 -21 06 23.967339435 5.82 4.69 3.51 2.71 2.12 G8/K0II/III 123 0
17 * bet CrA * 19 10 01.7567255066 -39 20 26.853667665   5.281 4.095     K0II/IIICNIb 63 0
18 GRS G045.07 +00.13 Rad 19 13 22 +10 50.9           ~ 21 0
19 DRT03 G45.07+0.13 2 IR 19 13 22.0100 +10 50 51.600           ~ 3 0
20 IRAS 19110+1045 Y*O 19 13 22.0427 +10 50 53.336           ~ 132 0
21 DRT03 G45.07+0.13 3 IR 19 13 22.07 +10 50 55.4           ~ 3 0
22 * alf Aql dS* 19 50 46.99855 +08 52 05.9563 1.07 0.98 0.76 0.62 0.49 A7Vn 919 1
23 * alf Ind PM* 20 37 34.0321723878 -47 17 29.405217299 4.90 4.11 3.11     K0III-IV 141 0
24 DRT03 G45.07+0.13 5 IR ~ ~           ~ 1 0
25 DRT03 G45.07+0.13 6 IR ~ ~           ~ 1 0
26 DRT03 G45.07+0.13 4 IR ~ ~           ~ 1 0
27 DRT03 G45.07+0.13 7 IR ~ ~           ~ 1 0

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