2014A&A...568A..49P


Query : 2014A&A...568A..49P

2014A&A...568A..49P - Astronomy and Astrophysics, volume 568A, 49-49 (2014/8-1)

Long-term photometric observations of pre-main sequence objects in the field of North America/Pelican Nebula.

POLJANCIC BELJAN I., JURDANA-SEPIC R., SEMKOV E.H., IBRYAMOV S., PENEVA S.P. and TSVETKOV M.K.

Abstract (from CDS):

To broaden the search and study stars in the early evolutionary phase, we investigated a sample of 17 pre-main sequence objects previously detected as either Hα emission-line pre-main sequence stars or T Tauri variables located in the field of the North America/Pelican Nebula complex. Johnson-Cousins B, V, Rc, Ic magnitudes and mean color indices for the program stars are determined from more than 12400 measurements from archive photographic plates and from CCD data collected at 7 observatories covering the period of almost 60 years from 1954 up to 2013. We complemented previously rare insights on the photometry of the program stars and presented their photometric history, which for almost all program stars is the first long term photometric monitoring on a timescale of 6 decades. Eight program stars are found to be classical T Tauri stars of variability type II, while 6 program stars are weak-line T Tauri stars of variability type I. For the first time, periodicity is found for three stars: V1716 Cyg indicates a 4.15-day period, V2051 Cyg indicates a 384-day period, and V521 Cyg a period of 503-days.

Abstract Copyright:

Journal keyword(s): stars: pre-main sequence - stars: variables: general

VizieR on-line data: <Available at CDS (J/A+A/568/A49): table6.dat table4/* table5/*>

Simbad objects: 30

goto Full paper

goto View the references in ADS

Number of rows : 30
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 V* FU Ori Or* 05 45 22.3647842544 +09 04 12.291320064   10.72 9.60     F0Iab 759 1
2 IC 5070 HII 20 51.0 +44 22           ~ 195 1
3 NAME Gulf of Mexico DNe 20 56.8 +43 52           ~ 46 0
4 V* V2051 Cyg Or* 20 57 48.8058010704 +43 50 23.553197772     17.17 16.18   ~ 7 0
5 NOMAD1 1338-0411046 * 20 57 54.63 +43 49 34.7   13.35 12.71 12.23 11.89 ~ 1 0
6 NOMAD1 1338-0411059 * 20 57 55.49 +43 49 54.5   13.24 13.23 12.91 12.47 ~ 1 0
7 V* V1957 Cyg Er* 20 57 56.5177593816 +43 52 36.210424044   18.0 16.3     ~ 6 0
8 V* V1538 Cyg Or* 20 57 57.5079723648 +43 50 08.907341604     17.82 16.85 16.28 ~ 7 0
9 EM* LkHA 185 Or* 20 57 59.8765249680 +43 53 25.987139880   16.845 15.374 15.08 13.399 K6e 26 0
10 CoKu NGC 7000/IC 5070 IRS 3 Em* 20 58 03.0 +43 50 42     17.2     M2 6 0
11 V* V1716 Cyg Or* 20 58 06.1164243960 +43 53 01.122808776   19.052 17.300 16.74 14.929 ~ 8 0
12 NOMAD1 1338-0411236 * 20 58 11.50 +43 52 04.0   10.73 10.51 10.38 10.31 ~ 1 0
13 [KW97] 53-17 Em* 20 58 16.2577342440 +43 53 35.104618644     20.24 18.53 16.94 ~ 7 0
14 V* V2493 Cyg Or* 20 58 17.0280367392 +43 53 43.341681156   19.678 18.023 17.67 15.233 K7/M0e 105 0
15 2MASS J20581790+4353441 Em* 20 58 17.9146197168 +43 53 44.109415608   20.628 18.109 16.84 14.739 ~ 7 0
16 [KW97] 53-22 Em* 20 58 18.5050072272 +43 53 45.965522904     20.53 18.75 17.08 ~ 6 0
17 2MASS J20581951+4353449 Em* 20 58 19.515 +43 53 45.00   20.649 18.445 17.65 15.093 ~ 7 0
18 EM* LkHA 186 Em* 20 58 19.6169189136 +43 53 54.515956956   19.322 17.395 16.68 14.747 K3IVe 15 0
19 EM* LkHA 187 Em* 20 58 21.5417561808 +43 53 44.909703888   19.476 17.639 17.05 14.811 K5IVe 16 0
20 EM* LkHA 188 Or* 20 58 23.8103792952 +43 53 11.390094636     14.65 13.69 13.37 K0e 48 0
21 EM* LkHA 189 Em* 20 58 24.0134263080 +43 53 54.561939180   18.175 16.376 15.80 13.936 K6IVe 19 0
22 V* V752 Cyg Or* 20 58 33.5945774064 +44 03 35.511389604           ~ 6 0
23 NGC 7000 Cl* 20 58 47 +44 19.8           ~ 381 0
24 NOMAD1 1338-0411656 * 20 58 47.80 +43 51 41.7   15.14 14.05 13.32 12.79 ~ 1 0
25 [KW97] 53-36 Em* 20 58.8 +44 03     12.7     ~ 3 0
26 NOMAD1 1339-0412470 * 20 58 52.60 +43 54 51.3   13.25 12.54 12.01 11.64 ~ 1 0
27 HD 199956 * 20 58 55.6412825304 +44 03 37.623930840   7.709 6.638 5.98 5.66 K0.5III 30 0
28 TYC 3179-1257-1 * 20 58 58.6858121472 +43 57 15.285744252   11.70 11.45 10.86 10.61 ~ 1 0
29 TYC 3179-1411-1 * 20 59 01.2073301664 +43 59 34.892369700   11.70 11.05 11.04 10.75 ~ 1 0
30 EM* LkHA 191 TT* 20 59 05.8229767296 +43 57 03.142766412   14.094 12.955   11.618 K0e 31 0

To bookmark this query, right click on this link: simbad:objects in 2014A&A...568A..49P and select 'bookmark this link' or equivalent in the popup menu


2022.05.19-23:44:58

© Université de Strasbourg/CNRS

    • Contact