Results 31 to 40 of about 5,204,122 (311)
SOME EUROPEAN VARIABLE STAR OBSERVERS ORGANIZATIONS
Odessa Astronomical Publications, 2017 A subjective description and comparison of four groups of variable stars observers.
A. Paschke
doaj +1 more source
Multifilter Time-series Observations of Eleven Blue Short-period ATLAS Variable Stars
The Astronomical Journal, 2023 Eleven periodic variable stars were observed photometrically through two to four filters from the set UBVR _C I _C . Phase-folded data for each star cover full cycles of variation.
C. Koen, V. Schaffenroth, A. Kniazev
doaj +1 more source
Long-period variable stars in NGC 147 and NGC 185 – I. Their star formation histories [PDF]
, 2016 NGC 147 and NGC 185 are two of the most massive satellites of the Andromeda galaxy (M 31). Close together in the sky, of similar mass and morphological type dE, they possess different amounts of interstellar gas and tidal distortion.
R. H. Golshan +4 more
semanticscholar +1 more source
BD +20°1171 - LONG - PERIODIC VARIABLE STAR
Odessa Astronomical Publications, 2017 BD +20°1171 (= NSV 16732 = TYCHO 1320 91 1 = HD 39785 = SAO 077726) is a long-periodic pulsating variable star of SRc-type with a period of 20930d , range of variations in B 8.m8 - 10.m3, and the most realiable maximum is JD 2443410 ...
I. S. Brukhanov
doaj +1 more source
SciPost Physics Proceedings, 2020 The Space Star Anomaly in proton-deuteron breakup cross-section occurs at energies of about 10 MeV. Data for higher energies are sparse. Therefore, a systematic scan over star configurations in the range of intermediate energies between 50 and 100 MeV ...
A. Wilczek, A. Szadzinski, K. Bodek, I. Ciepal, M. Eslami-Kalantari, N. Kalantar-Nayestanaki, G. Khatri, St. Kistryn, B. Klos, A. Kozela, J. Kubos, P. Kulessa, A. Lobejko, A. Magiera, H. Mardanpour, J. Messchendorp, I. Mazumdar, W. Parol, A. Ramazani-Moghaddam-Aran, R. Ramazani-Sharifabadi, D. Rozpedzik, I. Skwira-Chalot, E. Stephan, B. Wloch, A. Wronska, J. Zejma
doaj +1 more source
THE CATALINA SURVEYS PERIODIC VARIABLE STAR CATALOG [PDF]
, 2014 We present ∼47,000 periodic variables found during the analysis of 5.4 million variable star candidates within a 20,000 deg2 region covered by the Catalina Surveys Data Release-1 (CSDR1).
A. Drake +20 more
semanticscholar +1 more source
The Herschel view of the nebula around the luminous blue variable star AG Carinae [PDF]
, 2015 Far-infrared Herschel PACS imaging and spectroscopic observations of the nebula around the luminous blue variable (LBV) star AG Car have been obtained along with optical imaging in the Hα+[N ii] filter.
C. Vamvatira-Nakou +7 more
semanticscholar +1 more source
NEW VARIABLE STAR IN THE ORION CONSTELLATION
Odessa Astronomical Publications, 2017 New variable star with α = 05° 57m22s, δ = +20°15.5' (1950) was discovered with elements JD Max=2436999.28 + 0.2343973 E, range 15.6- 16.2m (pg) and asymmetry M-m=0.26.
I. S. Brjukhanov, V. P. Goranskij
doaj +1 more source
The star formation history of the Magellanic Clouds derived from long-period variable star counts [PDF]
, 2014 We present the first reconstruction of the star formation history (SFH) of the Large and Small Magellanic Clouds (LMC and SMC) using Long Period Variable stars. These cool evolved stars reach their peak luminosity in the near-infrared; thus, their K-band
S. R. Kh. +3 more
semanticscholar +1 more source
The History Goes On: Century Long Study of Romano’s Star
Galaxies, 2019 GR 290 (M 33 V0532 = Romano’s Star) is a unique variable star in the M33 galaxy, which simultaneously displays variability typical for luminous blue variable (LBV) stars and physical parameters typical for nitrogen-rich Wolf-Rayet (WR) stars (WN ...
Olga Maryeva +5 more
doaj +1 more source