2001A&A...377..994T


Query : 2001A&A...377..994T

2001A&A...377..994T - Astronomy and Astrophysics, volume 377, 994-998 (2001/10-3)

Detection of the unusual 3.5µm feature in the Herbig Be star MWC 297.

TERADA H., IMANISHI M., GOTO M. and MAIHARA T.

Abstract (from CDS):

We present spectroscopic observations of MWC 297 with medium spectral resolution in the 2.1-4.1µm region, that show the unusual emission band at 3.53µm as well as gaseous emission lines of the Brackett, Pfund and Humphrey series of hydrogen. A unique aspect of the measured 3.53µm emission band is the fact that, within our detection limit, it is not accompanied by the 3.3 and 3.4µm emission band. We suggest that the 3.53µm feature could be emitted by highly dehydrogenized carbonaceous dust particles that were processed under the influence of the strong radiation field of the central star.

Abstract Copyright:

Journal keyword(s): infrared: stars - ISM dust - stars: individual: MWC 297 - stars: circumstellar matter

Simbad objects: 13

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Number of rows : 13
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 V* V892 Tau Ae* 04 18 40.6120892867 +28 19 15.641672501   16.6 14.69 14.35   A0Ve 271 0
2 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 3742 0
3 V* PS Gem pA* 07 03 39.6306725638 +10 46 13.076555664   7.76 7.37     A0 108 0
4 HD 89353 pA* 10 18 07.5892879413 -28 59 31.194541133   5.76 5.53     B9.5Ib/II 289 0
5 HD 97048 Ae* 11 08 03.3105687971 -77 39 17.491180130 9.03 8.76 9.00   8.64 A0Vep 476 0
6 HD 100546 Be* 11 33 25.4404858122 -70 11 41.239343121   6.71 6.30   6.64 A0VaekB8_lB 681 1
7 HD 142527 Ae* 15 56 41.8888096574 -42 19 23.245384377   9.04 8.34     F6III 522 1
8 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3196 1
9 CD-42 11721 Be* 16 59 06.7622892572 -42 42 08.404916931 12.16 12.28 11.00     B0IVe 156 0
10 * 74 Oph * 18 20 52.0643464670 +03 22 37.781689457   5.764 4.856     G8III 106 0
11 EM* MWC 297 Ae* 18 27 39.5266257570 -03 49 52.136526892 15.57 14.34 12.31 11.34   B1.5Ve 271 0
12 NAME Serpens Cloud SFR 18 29 49 +01 14.8           ~ 976 2
13 NAME CrA Dark Cloud MoC 19 01 51 -36 58.9           ~ 416 0

    Equat.    Gal    SGal    Ecl

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2021.07.27-08:19:32

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