2006A&A...457..171A


C.D.S. - SIMBAD4 rel 1.7 - 2021.06.17CEST23:41:19

2006A&A...457..171A - Astronomy and Astrophysics, volume 457, 171-181 (2006/10-1)

A survey for nanodiamond features in the 3 micron spectra of Herbig Ae/Be stars.

ACKE B. and VAN DEN ANCKER M.E.

Abstract (from CDS):

We have carried out a survey of 60 Herbig Ae/Be stars in the 3 micron wavelength region in search for the rare spectral features at 3.43 and 3.53 micron. These features have been attributed to the presence of large, hot, hydrogen-terminated nanodiamonds. Only two Herbig Ae/Be stars, HD 97048 and Elias 3-1 are known to display both these features. We have obtained medium-resolution spectra (R∼2500) with the ESO near-IR instrument ISAAC in the 3.15-3.65 micron range. In our sample, no new examples of sources with prominent nanodiamond features in their 3 micron spectra were discovered. Less than 4% of the Herbig targets show the prominent emission features at 3.43 and/or 3.53µm. Both features are detected in our spectrum of HD 97048. We confirm the detection of the 3.53µm feature and the non-detection of the 3.43µm feature in MWC 297. Furthermore, we report tentative 3.53µm detections in V921 Sco, HD 163296 and T CrA. The sources which display the nanodiamond features are not exceptional in the group of Herbig stars with respect to disk properties, stellar characteristics, or disk and stellar activity. Moreover, the nanodiamond sources are very different from each other in terms of these parameters. We do not find evidence for a recent supernova in the vicinity of any of the nanodiamond sources. We have analyzed the PAH 3.3µm feature and the Pfundδ hydrogen emission line, two other spectral features which occur in the 3 micron wavelength range. We reinforce the conclusion of previous authors that flared-disk systems display significantly more PAH emission than self-shadowed-disk sources. The Pfδ line detection rate is higher in self-shadowed-disk sources than in the flared-disk systems. We discuss the possible origin and paucity of the (nano)diamond features in Herbig stars. Different creation mechanisms have been proposed in the literature, amongst others in-situ and supernova-induced formation. Our data set is inconclusive in proving or disproving either formation mechanism.

Abstract Copyright:

Journal keyword(s): circumstellar matter - stars: pre-main-sequence - planetary systems: protoplanetary disks

Simbad objects: 64

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Number of rows : 64

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 ACO S 310 ClG 02 54 39 -49 27.9           ~ 2 0
2 V* V892 Tau Ae* 04 18 40.6120892867 +28 19 15.641672501   16.6 14.69 14.35   A0Ve 271 0
3 V* UX Ori Ae* 05 04 29.9881676817 -03 47 14.288047238 10.25 10.93 8.70 9.62 9.43 A4IVe 339 1
4 V* V1366 Ori Ae* 05 16 00.4764811920 -09 48 35.394685295 10.19 10.16 9.84 9.77 9.63 B9.5V 171 0
5 HD 287841 Y*O 05 24 42.8031051407 +01 43 48.249517233 10.55 10.45 10.17 9.99 9.80 A8V 92 0
6 V* CO Ori Or* 05 27 38.3352 +11 25 38.923 12.96 12.33 10.30 10.33 9.63 F7Ve 158 0
7 HD 35929 dS* 05 27 42.7907337821 -08 19 38.446457813   8.55 8.11     F2IV/V 93 0
8 V* V1650 Ori Or* 05 29 11.4396287730 -06 08 05.404023469   11.02 10.39     F7 27 0
9 V* HK Ori Ae* 05 31 28.0451235474 +12 09 10.149849783 11.82 12.06 11.10 11.02 10.56 A2?e+G0?e 179 1
10 HD 244604 Or* 05 31 57.2512002483 +11 17 41.374206174   9.61 9.43     A0Vesh 61 0
11 V* RY Ori Or* 05 32 09.9419985443 -02 49 46.769539985 12.62 12.76 10.80 10.82 10.34 F7 52 0
12 V* T Ori Ae* 05 35 50.4483740019 -05 28 34.923375739 12.724 11.637 11.248 10.09 10.043 A3IVeb 233 0
13 BD-06 1253 Ae* 05 36 25.4313245626 -06 42 57.684449700   11.65 10.9 10.29   A1e 411 1
14 HD 37258 Ae* 05 36 59.2489032761 -06 09 16.317559872   9.72 9.61 9.56   A3Ve 117 0
15 V* BF Ori Ae* 05 37 13.2623698298 -06 35 00.565420577 10.37 10.00 9.69 10.06 9.31 A7III 272 0
16 HD 37357 Ae* 05 37 47.0795535305 -06 42 30.203876953   8.96 8.85     A1V 98 0
17 Parenago 2649 Ae* 05 38 09.3040922103 -06 49 16.597267355   15.361 13.860 13.438   A5e 53 0
18 HD 37411 Or* 05 38 14.5075249942 -05 25 13.317577897 10.03 9.91 9.79 9.60 9.45 hA3VakA0mA0(eb)_lB 84 0
19 [H53b] 13a ISM 05 38 18.20 -07 02 25.9           ~ 7 0
20 V* V599 Ori Or* 05 38 58.6395431132 -07 16 45.627263335   15.39 13.70 12.61   A8.9 40 0
21 V* V350 Ori Y*O 05 40 11.7641189614 -09 42 11.085315699 12.74 12.08 11.42 11.38 10.96 A7V 68 0
22 HD 37806 Be* 05 41 02.2930276072 -02 43 00.729083804 7.67 7.93 7.90     B9/9.5II/III 143 0
23 HD 250550 Ae* 06 01 59.9894900068 +16 30 56.724889160   9.60 9.593 9.64   B9e 235 1
24 V* VY Mon Ae* 06 31 06.9180562526 +10 26 04.982093681 16.65 15.45 13.70 12.49 11.00 A5:Vep 89 0
25 EM* LkHA 215 Ae* 06 32 41.7734957477 +10 09 34.205635971 11.41 11.28 10.70     B7IIne 122 0
26 HD 259431 Ae* 06 33 05.1905483916 +10 19 19.987469692 8.39 8.95 8.72     B6ep 268 1
27 NAME MONOCEROS NEB SNR 06 38 43 +06 30.2           ~ 223 0
28 V* R Mon Ae* 06 39 09.9538710861 +08 44 09.559404231 10.76 12.46 11.85 10.96 10.25 B8IIIe 506 0
29 EM* LkHA 25 Ae* 06 40 44.6381481431 +09 48 02.146205543 12.745 13.03 12.88 12.545 12.386 B4Ve 131 0
30 HD 52721 Ae* 07 01 49.50977 -11 18 03.3219 5.88 6.65 6.59 7.52   B2Vne 204 0
31 HD 53367 Ae* 07 04 25.5189757244 -10 27 15.613478141 6.81 7.40 6.96 7.92   B0IV/Ve 307 0
32 CD-44 3318 Ae* 07 19 28.2886716751 -44 35 11.235575735   10.47 9.99     A1e/F2IIIe 115 0
33 HD 76534 Be* 08 55 08.70673 -43 27 59.8852 7.04 7.62 7.50 8.94   B2Vn 114 0
34 HD 85567 Be* 09 50 28.5375203189 -60 58 02.950579275 8.16 8.67 8.57     B5Vne 81 0
35 HD 89353 pA* 10 18 07.5892879413 -28 59 31.194541133   5.76 5.53     B9.5Ib/II 289 0
36 HD 95881 Em* 11 01 57.6212785173 -71 30 48.313329972   8.37 8.23     A0 90 0
37 HD 97048 Ae* 11 08 03.3105687971 -77 39 17.491180130 9.03 8.76 9.00   8.64 A0Vep 475 0
38 HD 100546 Be* 11 33 25.4404858122 -70 11 41.239343121   6.71 6.30   6.64 A0VaekB8_lB 679 1
39 HD 101412 Be* 11 39 44.4562795603 -60 10 27.717502041   9.465 9.288     A3VaekA0mA0_lB 122 0
40 V* T Cha Or* 11 57 13.5268556629 -79 21 31.521755129   10.00 11.86     K0e 243 1
41 CPD-61 3587B Em* 13 19 04.0 -62 34 10     15.17     ~ 5 0
42 HD 130437 Be* 14 50 50.2529505011 -60 17 10.361150632 10.20 10.66 10.04 9.93   B1Ve 57 0
43 SS73 44 Ae* 15 03 23.7935361802 -63 22 58.878928904   13.88 12.75     Ae/B[e] 44 1
44 HD 132947 * 15 04 56.0562927863 -63 07 52.642456945   9.00 8.94     B9V 30 0
45 HD 141569 Y*O 15 49 57.7484743862 -03 55 16.344023102 7.22 7.20 7.12 7.00 7.04 A2VekB9mB9(_lB) 481 0
46 HD 142666 TT* 15 56 40.0222941557 -22 01 40.004849949 9.41 9.37 8.82 8.31 8.01 F0V_sh 226 0
47 HD 142527 Ae* 15 56 41.8888096574 -42 19 23.245384377   9.04 8.34     F6III 521 1
48 V* V856 Sco Ae* 16 08 34.2868591379 -39 06 18.326059778 7.66 7.41 7.05 6.92   A7IIIne_sh 360 0
49 HD 150193 Be* 16 40 17.9242900066 -23 53 45.192676418 9.69 9.32 8.79 8.41   B9.5Ve 297 0
50 V* AK Sco Ae* 16 54 44.8497760618 -36 53 18.560813962 9.80 9.63 9.00     F5V 246 1
51 CD-42 11721 Be* 16 59 06.7622892572 -42 42 08.404916931 12.16 12.28 11.00     B0IVe 156 0
52 EM* AS 220 Ae* 17 10 08.1238 -27 15 18.801 12.86 12.79 12.22 12.03 10.82 A6Ve+G5Ve 133 0
53 HD 163296 Ae* 17 56 21.2882188601 -21 57 21.872343282 7.00 6.93 6.85 6.86 6.67 A1Vep 871 0
54 EM* MWC 297 Ae* 18 27 39.5266257570 -03 49 52.136526892 15.57 14.34 12.31 11.34   B1.5Ve 271 0
55 V* VV Ser Ae* 18 28 47.8619658319 +00 08 39.924642619 12.99 12.63 11.80 11.01 10.24 A5Ve 232 0
56 EM* MWC 300 Ae* 18 29 25.6915000349 -06 04 37.289920628 12.55 12.67 13.795     B1Ia+[e] 129 0
57 EM* AS 310 Ae* 18 33 21.1940643266 -04 58 05.977829160   13.58 12.52 12.62   B1e 124 1
58 V* S CrA Or* 19 01 08.597088 -36 57 19.89504   11.76 10.91 11.41   G0Ve+K0Ve 263 0
59 V* TY CrA Ae* 19 01 40.8312189956 -36 52 33.801844387 10.03 9.92 9.39     B9e 272 0
60 V* R CrA Ae* 19 01 53.6850227874 -36 57 08.145519972 12.781 12.651 11.917 11.242 10.412 B5IIIpe 457 1
61 V* T CrA Ae* 19 01 58.7901571143 -36 57 50.329832417     11.67     F0 157 0
62 HD 179218 Ae* 19 11 11.2540715594 +15 47 15.632212730 7.55 7.476 7.39 7.25 7.21 A0Ve 225 0
63 Parsamian 21 Or* 19 29 00.849408 +09 38 43.39932   15.18 14.07 13.93   F5Iabe 82 0
64 HD 190073 Ae* 20 03 02.5098091524 +05 44 16.658081203 7.91 7.86 7.73   7.65 A2IVe 232 0

    Equat.    Gal    SGal    Ecl

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2021.06.17-23:41:19

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