546 citations
- Isaac Newton InstituteCL35 papers
- Centre National de la Recherche ScientifiqueFR32 papers
- Institut d'Astrophysique de ParisFR25 papers
- Yerevan State UniversityAM25 papers
- Centro de Astrofísica da Universidade do PortoPT20 papers
- Osservatorio Astronomico di PadovaIT19 papers
- Space Telescope Science InstituteUS19 papers
- Universidade do PortoPT19 papers
- Max Planck Institute for Radio AstronomyDE17 papers
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- University of WrocławPL15 papers
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8 papers · 1 filter
Simultaneous photometric and spectral analysis of a new outburst of V1686 Cyg
Hasmik Andreasyan, Tigran Magakian, Tigran Movsessian
We present an analysis of the optical observations of Herbig AeBe star V1686 Cyg, which is associated with a small isolated star-forming region around HAeBe star BD+40412…
A nearby recent supernova that ejected the runaway star zeta Oph, the pulsar PSRB1706-16, and 60-Fe found on Earth
Ralph Neuhaeuser, Frank Gießler, Valeri V. Hambaryan
The detection of Myr old Fe on Earth indicates recent nearby core-collapse supernovae. For supernovae in multiple stars, the primary stars may become neutron…
Variability of Ha emission in young stellar objects in the cluster IC 348
Elena H. Nikoghosyan, N. M. Azatyan
The aim of this work is to identify and study the stellar objects with variable EW(Ha) in the young stellar cluster IC 348. We performed photometric and slit-less observations at s…
Statistical analysis of roAp, He-weak and He-rich stars
S. Ghazaryan, G. Alecian, A. A. Hakobyan
To enlarge our database of Chemically Peculiar (CP) stars, we compiled published data concerning the He-weak and He-rich stars observed by high-resolution spectroscopy techniques d…
Two epoch spectro-imagery of FS Tau B outflow system
T. A. Movsessian, T. Yu. Magakian, A. N. Burenkov
Herbig-Haro (HH) flows exhibit a large variety of morphological and kinematical structures such as bow shocks, Mach disks, and deflection shocks. Both proper motion (PM) and radial…
Supernovae and their host galaxies -- VI. Normal Type Ia and 91bg-like supernovae in ellipticals
L. V. Barkhudaryan, A. A. Hakobyan, A. G. Karapetyan +4
We present an analysis of the galactocentric distributions of the "normal" and peculiar "91bg-like" subclasses of 109 supernovae (SNe) Ia, and study the global parameters of their…