77 citations · 252 across the 28 of their papers we have counts for
30 papers
SPICY 30021: an embedded bona fide FUor with a mid-infrared precursor
Zhen Guo, Calum Morris, Vitor Fermiano +37
Unstable mass accretion in young stellar objects (YSOs) often leads to observable outbursts, which play a key role in stellar mass assembly during pre-main-sequence evolution. The…
Long-Slit Spectroscopy Of Herbig-Haro Outflow System, Associated With IRAS 01166+6635
T. A. Movsessian, T. Yu. Magakian, A. V. Moiseev
We present long-slit spectroscopic observations of the outflow associated with an infrared source IRAS 01166+6635, conducted with the 6-m telescope of the Special Astrophysical Obs…
Optical Spectroscopy of the IR Source CPM 19 and Surrounding Objects
T. Yu. Magakian, T. A. Movsessian, A. V. Moiseev +2
Optical spectra of the well-known infrared source CPM~19, which exhibited a strong decline in brightness during the period from 1984--1987 to 2000--2005, have been obtained for the…
Complex investigations of an active star-formation region in southern part of Mon R2
T. A. Movsessian, J. Bally, T. Yu. Magakian +1
We continue to present the results of a Byurakan Narrow Band Imaging Survey (BNBIS). In this work we present the results of the search and further detailed investigation of the obj…
Two epoch spectra-imagery of PV Cep outflow system
T. A. Movsessian, T. Yu. Magakian, A. V. Moiseev
We continue to study the structure and kinematics of HH flows. Herbig-Haro (HH) flows exhibit large variety of morphological and kinematical structures. Both proper motion (PM) and…
New Herbig-Haro Objects associated with Embedded Sources
T. A. Movsessian, T. Yu. Magakian, B. Reipurth +1
We continue to present the results of the Byurakan Narrow Band Imaging Survey (BNBIS). The main goal of this survey is to search for Herbig-Haro (HH) objects and jets in Galactic d…
Enigmatic emission structure around Mrk 783: cross-ionization of a companion in 100 kpc away
Alexei V. Moiseev, Aleksandrina A. Smirnova, Tigran A. Movsessian
Mrk 783 is a narrow-line Seyfert 1 galaxy that possesses a relatively large two-sided radio emission extending up to 14 kpc from the active nucleus possibly connected with a large-…
The star in RNO 54 -- a post-FUor with short faint jet?
T. Yu. Magakian, T. A. Movsessian, H. R. Andreasyan +2
The aim of the present study was the spectral analysis of an unusual pre-main-sequence star in the cometary nebula RNO 54, which was suspected by several researchers as a FUori-lik…
Herbig-Haro Flows and Young Stars in the Dobashi 5006 Dark Cloud
T. A. Movsessian, T. Yu. Magakian, A. S. Rastorguev +1
Two new Herbig-Haro flows were found in a study of the isolated Dobashi 5006 dark cloud (l, b= 13): one certain (HH 1179) and one presumable, associated…
FUors, EXors and the role of intermediate objects
T. Yu. Magakian, T. A. Movsessian, H. R. Andreasyan
The studies of FUors, EXors and other young eruptive stars are very important for the understanding of the earliest stages of pre-main-sequence evolution. We describe the current s…
The gMOSS: the galaxy survey and galaxy populations of the large homogeneous field
A. Grokhovskaya, S. N. Dodonov, T. A. Movsessian +1
We present the gMOSS (Galaxies of Medium-band One-meter Schmidt telescope Survey) catalog of 19,000 galaxies in 20 filters (4 broadband SDSS and 16 medium-band filters). We…
Near-infrared detection of H flows in the core of Mon R1 association
T. Yu. Magakian, A. M. Tatarnikov, T. A. Movsessian +1
We report the discovery of 4 new H jets in Mon R1 star-forming region on the images obtained with the 2.5-m telescope of the Caucasian Mountain Observatory of SAI MSU through t…
PV Cep and V350 Cep: stars on the way between FUors AND EXors
H. R. Andreasyan, T. Yu. Magakian, T. A. Movsessian +1
Based on new observations during 2015-2020 and published data, the unusual eruptive variables PV Cep and V350 Cep are examined. It is shown that PV Cep underwent a regular outburst…
Proper motions of spectrally selected structures in the HH 83 outflow
T. A. Movsessian, T. Yu. Magakian, A. V. Moiseev
We continue our program of investigation of the proper motions of spectrally separated structures in the Herbig-Haro outflows with the aid of Fabry-Perot scanning interferometry. T…
Herbig-Haro flows around BBWo 192E (GM 1-23) nebula
T. Yu. Magakian, T. A. Movsessian, H. R. Andreasyan +2
We studied a small comet-shape reflection nebula, located in the dark cloud SL 4 in the Vela Molecular Ridge cloud C, known as BBWo 192E (GM 1-23), and a young infrared cluster emb…
Large Scale Distribution of Galaxies in The Field HS 47.5-22. II. Observational Data Analysis
Aleksandra Grokhovskaya, Sergei N. Dodonov, T. A. Movsessian
The results of the study of the large-scale distribution of galaxies up to z ~0.8 in the field HS 47.5-22 on the basis of photometric data of the 1-meter Schmidt telescope of the B…
New Herbig-Haro objects and outflows in Mon R1 association
T. A. Movsessian, T. Yu. Magakian, S. N. Dodonov
We present results of the narrow-band Halpha and [SII] imaging survey of Mon R1 association, performed with the 1 m Schmidt telescope of the Byurakan Observatory. Our observations…
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…
New powerful outburst of the unusual young star V1318 Cyg S (LkHα 225)
T. Yu. Magakian, T. A. Movsessian, H. R. Andreasyan +1
Young double star V1318 Cyg, which is associated with a small isolated star-forming region around HAeBe star BD+40o4124, has very unusual photometric and spectral behavior. We pres…
A new star-forming region in Canis Major
T. Yu. Magakian, T. A. Movsessian, J. Bally
A new southern star-formation region, located at an estimated distance of ~1.5 kpc in the Lynds 1664 dark cloud in Canis Major, is described. Lynds 1664 contains several compact st…
Results on Panoramic Spectroscopy of MRK 171
S. A. Hakopian, S. K. Balayan, T. A. Movsessian
Observations of Mrk 171, aimed at conduction of panoramic spectroscopy, were undertaken with the Byurakan 2.6-m telescope using spectrograph VAGR. Within the two components of the…
The Monitor Project: Stellar rotation at 13~Myr: I. A photometric monitoring survey of the young open cluster h~Per
E. Moraux, S. Artemenko, J. Bouvier +9
We aim at constraining the angular momentum evolution of low mass stars by measuring their rotation rates when they begin to evolve freely towards the ZAMS, i.e. after the disk acc…
V2494 Cyg: A unique FU Ori type object in the Cygnus OB7 complex
Tigran Yu. Magakian, Elena H. Nikogossian, Tigran Movsessian +9
A photometric and spectral study of the variable star V2494 Cyg in the L 1003 dark cloud is presented. The brightness of the star, formerly known as HH 381 IRS, increased by 2.5 ma…
A Wide-Field Near-Ir H2 2.122m line survey of the Braid Nebula Star Formation Region in Cygnus OB7
T. Khanzadyan, C. J. Davis, C. Aspin +8
Context. Outflows and jets are the first signposts of ongoing star formation processes in any molecular cloud, yet their study in optical bands provides limited results due to the…