32 citations · 76 across the 12 of their papers we have counts for
13 papers
Cosmic Rulers: Masers as Tools for Probing Structure in the Galaxy and Beyond, from AU to kpc
Kazi L. J. Rygl, Anna Bartkiewicz, Olga Bayandina +9
Maser emission provides an unique window into astronomical sources across vast spatial scales - from tens to hundreds of astronomical units around protostars and evolved stars up t…
Detections of Compact Radio Continuum toward Methanol Maser Rings Using the VLA
Anna Bartkiewicz, Olga Bayandina, Alberto Sanna +5
High-mass protostars are deeply embedded in dust inside their natal cores and are not easily detectable. However, maser emission at centimeter wavelengths, owing to its high bright…
Protostellar Outflows at the EarliesT Stages (POETS). VIII. The jets in the intermediate-mass star-forming region G105.42+9.88 (alias LkHα 234)
Luca Moscadelli, Fabrizio Massi, Olga Bayandina
Our aim is to investigate the protostellar jets inside the young stellar object (YSO) cluster G105.42+9.88 (alias LkH 234). This is one of the least luminous targets of the Prot…
Protostellar Outflows at the EarliesT Stages (POETS) VI. Evidence of disk-wind in G11.92-0.61 MM1
O. S. Bayandina, L. Moscadelli, R. Cesaroni +3
Magnetohydrodynamic disk-winds play a key role in the formation of massive stars by providing the fine-tuning between accretion and ejection, where excess angular momentum is redir…
Protostellar Outflows at the EarliesT Stages (POETS) V. The launching mechanism of protostellar winds via water masers
Luca Moscadelli, André Oliva, Alberto Sanna +2
Understanding the launching mechanism of winds and jets remains one of the fundamental challenges in astrophysics. The Protostellar Outflows at the EarliesT Stages (POETS) survey h…
The Effelsberg survey of FU~Orionis and EX~Lupi objects II. -- HO maser observations
Zs. M. Szabó, Y. Gong, W. Yang +7
FU Orionis (FUor) and EX Lupi (EXor) type objects are two groups of peculiar and rare pre-main sequence low-mass stars that are undergoing powerful accretion outbursts during their…
A Keplerian disk with a four-arm spiral birthing an episodically accreting high-mass protostar
R. A. Burns, Y. Uno, N. Sakai +34
High-mass protostars (M 8 M) are thought to gain the majority of their mass via short, intense bursts of growth. This episodic accretion is thought to be faci…
Multi-frequency VLBI observations of maser lines during the 6.7~GHz maser flare in the high-mass young stellar object G24.330.14}
A. Kobak, A. Bartkiewicz, M. Szymczak +13
Recent studies have shown that 6.7 GHz methanol maser flares can be a powerful tool for verifying the mechanisms of maser production and even the specific signatures of accretion r…
Episodic ejection from a low-mass young stellar object traced by HO masers
Zs. M. Szabó, O. Bayandina, Á. Kóspál +5
We present the project of a VLBI study of the 22 GHz HO maser in a prototypical low-mass protostellar system IRAS 16293-2422. The observation was conducted to characterise the…
Infrared observations of the flaring maser source G358.93-0.03 -- SOFIA confirms an accretion burst from a massive young stellar object
B. Stecklum, V. Wolf, H. Linz +24
Class II methanol masers are signs of massive young stellar objects (MYSOs). Recent findings show that MYSO accretion bursts cause flares of these masers. Thus, maser monitoring ca…
VLBI observations of the G25.65+1.05 water maser superburst
R. A. Burns, G. Orosz, O. Bayandina +23
This paper reports observations of a 22 GHz water maser `superburst' in the G25.65+1.05 massive star forming region, conducted in response to an alert from the Maser Monitoring Org…
Multi-epoch VLBI of a double maser super burst
Ross A. Burns, Olga Bayandina, Gabor Orosz +20
In a rare and spectacular display, two well-known massive star forming regions, W49N and G25.65+1.05, recently underwent maser 'super burst' - their fluxes suddenly increasing abov…
HO Masers and Protoplanetary Disk Dynamics in IC 1396 N
O. S. Bayandina, I. E. Val'tts, S. E. Kurtz +2
We report HO maser line observations of the bright-rimmed globule IC 1396 N using a ground-space interferometer with the 10-m RadioAstron radio telescope as the space-based ele…