2001A&A...377..854M


C.D.S. - SIMBAD4 rel 1.7 - 2020.04.08CEST21:40:13

2001A&A...377..854M - Astronomy and Astrophysics, volume 377, 854-867 (2001/10-3)

The pre-main-sequence star IP Persei.

MIROSHNICHENKO A.S., BJORKMAN K.S., CHENTSOV E.L., KLOCHKOVA V.G., GRAY R.O., GARCIA-LARIO P. and PEREA CALDERON J.V.

Abstract (from CDS):

We present the results of high- and low-resolution spectroscopic and broadband multicolour photometric observations of the emission-line A-type star IP Per. Significant variations of the Balmer line profiles and near-IR brightness are detected. Comparison with the spectra of other stars and theoretical models allowed us to derive its fundamental parameters as follows: Teff≃8000K, logg≃4.4, logLbol/L≃1.0. They correspond to the MK type A7 V. We also found that the metallicity of the object's atmosphere is nearly 40 per cent that of the Sun. Our result for the star's gravity implies that it is located at the zero-age main-sequence. We conclude that IP Per is a pre-main-sequence Herbig Ae star, and belongs to the group of UX Ori-type stars showing irregular photometric minima. A recent result by Kovalchuk & Pugach (1997), that IP Per is an evolved high-luminosity star, is not confirmed. The discrepancy in the logg determination, which led to the difference in the luminosity, seems to be due to uncertainties in the echelle data reduction for broad lines and a different estimate for the star's temperature.

Abstract Copyright:

Journal keyword(s): stars: emission-line - stars: pre-main-sequence - stars: individual: IP Per - techniques: spectroscopic, techniques photometric

Status at CDS:  

Simbad objects: 23

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Number of rows : 23

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 HD 22418 PM* 03 37 27.9288525 +31 07 12.813726   7.38 6.957     F5 37 0
2 V* V1185 Tau Ir* 03 39 00.5584302634 +29 41 45.727114612   11.04 10.67     A0 19 0
3 HD 278937 Em* 03 40 46.9603307360 +32 31 53.715906654   10.66 10.40     A7III:kA2.5mA3e(r) 75 0
4 Ass Per OB 2 As* 03 42.2 +33 26           ~ 304 0
5 V* V1187 Tau dS* 03 44 00.2687309325 +24 33 25.191688546   8.28 8.07     A5V 114 0
6 * omi Per ** 03 44 19.13204 +32 17 17.6929 3.13 3.88 3.83 3.71 3.71 B1III 572 0
7 IC 348 OpC 03 44 34 +32 09.8           ~ 1216 1
8 V* XY Per Ae* 03 49 36.3362509899 +38 58 55.551266650 12.12 10.14 9.58 9.54 8.40 A2II+B6 141 0
9 * tet02 Tau dS* 04 28 39.7445471109 +15 52 15.122606898 3.690 3.600 3.410 5.43   A7III 416 0
10 * alf Tau LP? 04 35 55.23907 +16 30 33.4885 4.32 2.40 0.86 -0.37 -1.31 K5+III 1177 1
11 V* AB Aur Ae* 04 55 45.8459978418 +30 33 04.293281305 7.20 7.16 7.05 6.96 6.70 A0Ve 919 2
12 V* UX Ori Ae* 05 04 29.9881676817 -03 47 14.288047238 10.25 10.93 8.70 9.62 9.43 A4IVe 330 1
13 HD 32509 Y*O 05 04 50.1337362256 +26 43 14.788736440   7.69 7.52     A2e 23 0
14 CCDM J05055+1948AB ** 05 05 32.10213 +19 48 24.2217   6.68 6.44     A5m 67 1
15 * eta Aur PM* 05 06 30.8933734 +41 14 04.112721 2.33 3.00 3.18 3.23 3.40 B3V 355 0
16 HD 36112 Ae* 05 30 27.5286772598 +25 19 57.082162439   8.57 8.27     A8Ve 345 0
17 * rho Gem ** 07 29 06.71887 +31 47 04.3773 4.48 4.50 4.18 3.86 3.67 F1V 310 0
18 HD 59612 * 07 29 51.4121211636 -23 01 27.437916738 5.27 5.10 4.86 4.58 4.38 A5/7Iab/II 118 1
19 * iot UMa ** 08 59 12.45362 +48 02 30.5741 3.40 3.33 3.14 2.92 2.85 A6 282 0
20 * iot UMa A SB* 08 59 12.4597226763 +48 02 30.593508885   3.36 3.13     A7V(n) 251 0
21 * 16 Com * 12 26 59.2961544883 +26 49 32.527285792   5.045 4.959   4.93 A4V 143 0
22 * gam Boo dS* 14 32 04.6717964 +38 18 29.704270 3.33 3.21 3.02 2.88 2.80 A7IV+(n) 229 0
23 HD 184761 PM* 19 34 58.9696800358 +27 13 31.222607898   7.00 6.73     A3 20 0

    Equat.    Gal    SGal    Ecl

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2020.04.08-21:40:13

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