2009ApJ...705.1298D

Query : 2009ApJ...705.1298D

2009ApJ...705.1298D - Astrophys. J., 705, 1298-1319 (2009/November-2)

NSCC–A new scheme of classification of c-rich stars devised from optical and infrared observations.

DE MELLO A.B., LORENZ-MARTINS S., DE ARAUJO F.X., PEREIRA C.B. and LANDABERRY S.J.C.

Abstract (from CDS):

A new classification system for carbon-rich stars is presented based on an analysis of 51 asymptotic giant branch carbon stars through the most relevant classifying indices available. The extension incorporated, which also represents the major advantage of this new system, is the combination of the usual optical indices that describe the photospheres of the objects, with new infrared ones, which allow an interpretation of the circumstellar environment of the carbon-rich stars. This new system is presented with the usual spectral subclasses and C2-, j-, MS-, and temperature indices, and also with the new SiC- (SiC/C.A. abundance estimation) and τ- (opacity) indices. The values for the infrared indices were carried out through a Monte Carlo simulation of the radiative transfer in the circumstellar envelopes of the stars. The full set of indices, when applied to our sample, resulted in a more efficient system of classification, since an examination in a wide spectral range allows us to obtain a complete scenario for carbon stars.

Abstract Copyright: ∼

Journal keyword(s): catalogs - circumstellar matter - infrared: stars - stars: atmospheres - stars: carbon

Simbad objects: 56

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Number of rows : 56
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 * mu. Men Ro* 04 43 03.9642436128 -70 55 51.694470264 4.96 5.391 5.511     B8II/III(pSi) 71 0
2 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
3 V* W Pic C* 05 43 13.8305960304 -46 27 13.825873188   12.52 11.80     C-J5 73 0
4 V* Y Tau C* 05 45 39.4101366456 +20 41 42.148590324 15.71 9.90 6.90 4.69 3.19 C-N5- 230 1
5 IRAS 05521-2242 Mi* 05 54 12.4142842008 -22 41 47.426874360   13.30 9.91 10.33   C-N:4 15 0
6 V* BN Mon C* 06 21 58.0007287200 +07 20 57.669147852   12.58 12.70     C4,3e 71 0
7 V* V636 Mon C* 06 25 01.4305200360 -09 07 15.963301164       11.78 8.83 C-N5 59 0
8 V* BL Ori C* 06 25 28.1742350712 +14 43 19.172149392 11.64 8.31 6.00 4.28 2.98 C-N5- 203 0
9 V* DH Gem C* 06 30 53.5417317192 +12 28 45.625891980   13.71 9.82     C-R2 29 0
10 V* CR Gem C* 06 34 23.9161338864 +16 04 30.317377620   12.37 8.67     C-N5 79 0
11 V* GP CMa C* 06 52 45.9207084576 -12 09 54.721451808     10.71 11.53   C-N6 34 0
12 V* NP Pup C* 06 54 26.6835568896 -42 21 56.058521256   8.49 6.27 4.55 3.28 C-N4.5 85 0
13 V* CL Mon C* 06 55 36.6904592496 +06 22 43.179553200   12.69 11.00 9.06   C-J:6 101 0
14 V* HV CMa C* 07 05 05.8274900568 -15 00 57.922888572       14.109   C-*6 36 0
15 V* RY Mon C* 07 06 56.4753359184 -07 33 26.505848700   11.94 7.50     C-N5 100 0
16 V* W CMa C* 07 08 03.4360567560 -11 55 23.796162984 13.44 8.98 6.56 4.86 3.51 C-N5 130 0
17 V* BO CMa C* 07 13 48.8787193416 -19 41 25.913001660   13.28 10.12     C-N5 27 0
18 V* BM Gem C* 07 20 59.0073521904 +24 59 58.086063708     11.50     C-J5- 155 1
19 V* BE CMa C* 07 23 38.5729928256 -22 58 10.771586076   11.4 8.67     C-J4.5 47 0
20 C* 749 C* 07 24 39.1245832224 -04 37 54.172440624     13.5     C-J5 23 0
21 C* 849 C* 07 39 04.3741751448 -40 28 46.650158328       9.92   C-H:6 35 0
22 CD-27 4367 C* 07 39 33.8811132384 -27 42 14.294886696   14.60 9.45     C-N5 27 0
23 CD-37 4167 C* 08 02 04.9975175328 -38 11 52.160871228   14.1 10.3     C-J4 51 0
24 V* FK Pup C* 08 09 10.9809434760 -36 17 06.984863088   12.70 12.00     C-N5 30 0
25 V* RY Hya C* 08 20 06.3208737504 +02 45 56.175135120   12.91 12.20     C-N5+ 68 0
26 V* MT Hya C* 08 20 41.3472380640 +05 11 21.703830792   12.05 9.86     C-J:4 41 0
27 * eta Hya bC* 08 43 13.4757536071 +03 23 55.182801587 3.380 4.100 4.300 4.37 4.56 B3V 418 1
28 V* T Cnc C* 08 56 40.1375904072 +19 50 56.919947352   12.07 7.60     C-N5 139 1
29 MC79 2-11 C* 08 58 54.2313605640 -60 47 36.088218924     11.4 11.22 9.33 C-J6 29 0
30 CD-50 4189 C* 09 28 50.0734754934 -50 54 15.909466223   12.1 9.4     C-J:5 14 0
31 V* XZ Vel C* 10 17 27.9828337512 -50 05 49.947761508   12.90 12.00     C-N:5 33 0
32 CD-62 466 C* 10 34 17.8411851504 -62 42 39.556311480   12.40 8.36     C-H:4 30 0
33 V* U Ant C* 10 35 12.8510147472 -39 33 45.324020448 15.32 8.22 5.38 3.18 1.86 C-N3 162 0
34 V* U Hya C* 10 37 33.2729535 -13 23 04.352923 13.29 7.51 4.82 3.05 1.78 C-N5 314 0
35 V* TV Car C* 10 38 43.5445577208 -60 49 24.884253048   14.09 9.70     C-N 25 0
36 V* TZ Car C* 10 46 03.0086009784 -65 36 52.711067700   11.1 10.20     C-R4III: 45 0
37 V* V Hya C* 10 51 37.2615873024 -21 15 00.333928044   12.23 6.80 7.42   C-N:6 391 0
38 * tet Crt PM* 11 36 40.9092052035 -09 48 08.001725582   4.604 4.673     B9.5V 226 0
39 V* S Cen C* 12 24 33.9185490504 -49 26 24.728127180 11.92 9.45 7.60     C-R4 53 0
40 V* SS Vir C* 12 25 14.3948245008 +00 46 10.946740368 15.84 10.79 6.60     C-N4.5: 211 1
41 V* DY Cru C* 12 47 24.6790898496 -59 41 41.073809172   14.66 8.86     C-N5.5 27 0
42 V* RX Cru C* 12 49 32.4228442296 -61 46 14.372812920   14.24 9.70     C-N:6 29 0
43 HD 113801 C* 13 06 24.8037587304 -20 03 31.476013128 10.72 9.67 8.50 7.76 7.24 C-R3III 57 0
44 V* T Mus C* 13 21 13.8460379880 -74 26 30.980302656   10.9 9.40     C-J4.5 53 0
45 V* V971 Cen C* 13 32 41.6659330080 -53 49 51.495962052   10.61 8.51     C-R2+III 27 0
46 V* RV Cen C* 13 37 36.0553362120 -56 28 35.057053308 13.59 9.87 7.00     C-N3 75 0
47 * 108 Vir * 14 45 30.2044637184 +00 43 02.180202816   5.656 5.665     B9.5V 165 0
48 V* NW Lib C* 15 04 00.5172798768 -02 51 05.106412440 13.16 11.88 10.46 8.96 7.75 C4,3J 44 0
49 V* V Oph C* 16 26 43.7067710136 -12 25 35.816948688   12.91 7.30     C-N:4 154 0
50 V* SU Sco C* 16 40 38.6728084368 -32 22 48.047102292   13.06 11.70     C-N5- 49 0
51 CD-29 13477 C* 17 24 00.7794506856 -29 19 30.359072244   12.88 9.44     C-N:5 43 1
52 V* TW Oph C* 17 29 43.6639675104 -19 28 22.866171888   12.95 8.79 7.54 8.70 C-N5 126 0
53 IRC -30364 C* 18 09 19.8238928568 -27 38 38.044506516           C-N:6 22 0
54 V* FO Ser C* 18 19 21.8140286424 -15 36 46.063194012 12.55 10.55 8.66 6.96 5.53 C-J4+ 66 0
55 V* UW Sgr C* 19 46 26.0748198648 -18 09 06.433052184 17.88 14.26 11.76     C7,1J 36 0
56 V* BI Cap C* 20 31 42.9594888912 -11 53 03.555971808   11.2 9.66     C3,4J 33 0

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