2008ApJ...673.1088Z

Query : 2008ApJ...673.1088Z

2008ApJ...673.1088Z - Astrophys. J., 673, 1088-1092 (2008/February-1)

Comparing the observational instability regions for pulsating pre-main-sequence and classical δ Scuti stars.

ZWINTZ K.

Abstract (from CDS):

A comparison of the hot and cool boundaries of the classical instability strip with observations has been an important test for stellar structure and evolution models of post- and main-sequence stars. Over the last few years, the number of pulsating pre-main-sequence (PMS) stars has increased significantly: 36 PMS pulsators and candidates are known as of 2007 June. This number allows to investigate the location of the empirical PMS instability region and to compare its boundaries to those of the classical (post- and main-sequence) instability strip. Due to the structural differences of PMS and (post-)main-sequence stars, the frequency spacings for nonradial modes will be measurably different, thus challenging asteroseismology as a diagnostic tool.

Abstract Copyright: ∼

Journal keyword(s): Stars: Variables: δ Scuti - Stars: Hertzsprung-Russell Diagram - Stars: Pre-Main-Sequence

Simbad objects: 43

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Number of rows : 43
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 CD-53 251 Or* 01 17 43.4985952032 -52 33 30.791840040   11.28 10.75     F3Ve 37 0
2 HD 278937 Or* 03 40 46.9605708144 +32 31 53.715087444   10.66 10.40     A7III:kA2.5mA3e(r) 96 0
3 IC 348 OpC 03 44 31.1 +32 10 02           ~ 1476 1
4 V* V705 Per dS* 03 44 31.1966304792 +32 06 22.152587220   11.3 10.6   9.474 F3V 54 0
5 V* UX Ori Ae* 05 04 29.9878898040 -03 47 14.286732072 10.25 10.93 8.70 9.62 9.43 A4IVe 379 1
6 V* V1366 Ori Ae* 05 16 00.4765181328 -09 48 35.393784012 10.19 10.16 9.84 9.77 9.63 B9.5V 253 0
7 HD 287841 Y*O 05 24 42.8032369656 +01 43 48.249234516 10.55 10.45 10.17 9.99 9.80 A8V 123 0
8 HD 35929 Ae* 05 27 42.7906489200 -08 19 38.446702140   8.55 8.11     F2IV/V 125 0
9 V* CQ Tau Ae* 05 35 58.4666264136 +24 44 54.091450572 11.290 10.780 10.000   8.33 F5IVe 360 0
10 V* BF Ori Ae* 05 37 13.2623828280 -06 35 00.568242528 10.37 10.00 9.69 10.06 9.31 A7III 311 0
11 V* V1247 Ori dS* 05 38 05.2519466880 -01 15 21.698856468   10.18 9.82     F0V 136 0
12 NAME Ori B MoC 05 41 43.0 -01 54 44           ~ 1498 0
13 V* V351 Ori Ae* 05 44 18.7949456328 +00 08 40.410217104 9.44 9.22 8.87     A7V 128 0
14 * bet Pic PM* 05 47 17.0876901 -51 03 59.441135 4.13 4.03 3.86 3.74 3.58 A6V 2087 1
15 V* V588 Mon dS* 06 39 05.9036624568 +09 41 03.432957252   9.93 9.75     A5/7 57 0
16 V* V589 Mon dS* 06 39 28.4641779744 +09 42 03.960230724   10.6 10.3     F0/2 61 0
17 NGC 2264 OpC 06 40 53.7 +09 52 32           ~ 1876 0
18 V* DX Cha Ae* 12 00 05.0868602544 -78 11 34.565724312   6.81 6.60     A4V 365 0
19 HD 142666 TT* 15 56 40.0221861696 -22 01 40.005872148 9.41 9.37 8.82 8.31 8.01 F0V_sh 306 0
20 V* V856 Sco Ae* 16 08 34.2870044544 -39 06 18.325711332 7.66 7.41 7.05 6.92   A9V_sh 405 0
21 V* V486 Sco Or* 17 34 37.8541369152 -32 36 18.594147276   13.196 12.651 12.642   A5IIIp 27 0
22 NGC 6383 55 Or* 17 34 48.4939971408 -32 37 21.316725984   13.45 12.80     ~ 8 0
23 NGC 6383 54 * 17 34 55.0939125864 -32 35 30.925202748   12.88 12.29     F0Ve 5 0
24 NGC 6530 13 Or* 18 04 00.1647811943 -24 15 02.832294556   13.779 13.343   12.805 ~ 15 0
25 NGC 6530 28 Or* 18 04 09.7940664720 -24 12 21.189705696   13.589 13.199   12.678 ~ 16 0
26 NGC 6530 38 Or* 18 04 13.8677135232 -24 13 28.116294384   12.659 12.155   11.492 A2 29 0
27 NGC 6530 53 Or* 18 04 20.5589569920 -24 24 55.498199580 14.562 13.649 13.050   12.127 F7-F9III 28 0
28 NGC 6530 57 Or* 18 04 21.6829924776 -24 15 47.014535016   14.268 13.645   12.764 ~ 16 0
29 NGC 6530 78 Y*O 18 04 30.7127405614 -24 23 41.888088580   14.550 13.972   13.214 ~ 10 0
30 NGC 6530 OpC 18 04 31 -24 21.5           ~ 443 0
31 NGC 6530 159 Or* 18 04 42.1957294968 -24 18 03.134251080   13.997 13.596   13.112 ~ 10 0
32 V* VV Ser Ae* 18 28 47.8620017808 +00 08 39.923474964 12.99 12.63 11.80 11.01 10.24 A5Ve 262 0
33 * del Sct dS* 18 42 16.4268984096 -09 03 09.188922060   5.04 4.71     F2II-III 507 0
34 V* WW Vul Ae* 19 25 58.7494120560 +21 12 31.333658616 11.46 10.99 10.25 10.38 10.12 A2IVe 237 0
35 V* PX Vul Or* 19 26 40.2532914312 +23 53 50.782579116 12.56 12.57 11.83 10.90 10.30 F3Ve 64 0
36 Cl* NGC 6823 HOAG 157 V* 19 43 06.7594687728 +23 16 37.282759788     14.6     ~ 12 0
37 Cl* NGC 6823 BL 50 V* 19 43 09.0494525184 +23 17 49.016339016       14.208   ~ 15 0
38 NGC 6823 OpC 19 43 11.3 +23 18 32   7.71 7.1     ~ 279 2
39 Cl* IC 4996 DAM 32 * 20 16 21.8835731736 +37 39 34.883356320 16.54 16.10 15.30     A5 7 0
40 Cl* IC 4996 DAM 30 * 20 16 29.8503581400 +37 39 30.277562220 16.21 15.78 15.03     A4 4 0
41 IC 4996 OpC 20 16 32.7 +37 38 46           ~ 187 0
42 Cl* IC 4996 ZW 46 * 20 16 43.9675391484 +37 39 33.993407605 16.38 16.02 15.30     ~ 5 0
43 EM* LkHA 233 Ae* 22 34 40.984104 +40 40 04.19520   14.356 13.527 13.673   A7Ve 150 0

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