101 citations · 826 across the 22 of their papers we have counts for
24 papers
Evolved stars: dust formation and mass loss
Luis Velilla-Prieto, Wouter Vlemmings, Guillermo Quintana-Lacaci +18
Evolved stars drive the chemical enrichment of the Universe, acting as primary producers of elemental products of nucleosynthesis and cosmic dust. Unraveling the exact role played…
Late-Time Evolution of the Massive Stellar Merger M101 OT2015-1
Marco A. Gómez-Muñoz, Nadejda Blagorodnova, Tomasz Kamiński +6
Luminous red novae (LRNe) are astronomical transients arising from unstable mass transfer and common envelope phases in close binary systems, culminating in stellar mergers. Their…
Unveiling the enigma of the Nakashima-Deguchi object (IRAS 19312+1950): a candidate Orion KL analog
Y. Gong, K. M. Menten, T. Kamiński +5
The Nakashima-Deguchi object (NDO; aka IRAS 19312+1950) has been recognized as an enigmatic object, exhibiting characteristics of both an evolved star and a star-forming region. Ho…
A radical transition in the post-main-sequence system U Equulei
Tomek Kaminski, Mirek R. Schmidt, Anlaug Amanda Djupvik +6
U Equ is an unusual maser-hosting IR source discovered in the 1990s. It was tentatively classified as a post-AGB star with a unique optical spectrum displaying rare emission and ab…
Rotational spectra of vibrationally excited AlO and TiO in oxygen rich stars
T. Danilovich, C. A. Gottlieb, L. Decin +6
Rotational transitions in vibrationally excited AlO and TiO -- two possible precursors of dust -- were observed in the 300 GHz range (1 mm wavelength) towards the oxygen rich AGB s…
Astro2020 Science White Paper: The fundamentals of outflows from evolved stars
E. De Beck, M. L. Boyer, V. Bujarrabal +16
Models of the chemical evolution of the interstellar medium, galaxies, and the Universe rely on our understanding of the amounts and chemical composition of the material returned b…
Submillimeter-wave emission of three Galactic red novae: cool molecular outflows produced by stellar mergers
T. Kaminski, W. Steffen, R. Tylenda +3
Red novae are optical transients erupting at luminosities typically higher than those of classical novae. Their outbursts are believed to be caused by stellar mergers. We present m…
Widespread HCN maser emission in carbon-rich evolved stars
K. M. Menten, F. Wyrowski, D. Keller +1
Context. HCN is a major constituent of the circumstellar envelopes of carbon-rich evolved stars, and rotational lines from within its vibrationally excited states probe parts of th…
Circumstellar ammonia in oxygen-rich evolved stars
K. T. Wong, K. M. Menten, T. Kamiński +3
The circumstellar ammonia (NH) chemistry in evolved stars is poorly understood. Previous observations and modelling showed that NH abundance in oxygen-rich stars is several…
Organic molecules, ions, and rare isotopologues in the remnant of the stellar-merger candidate, CK Vulpeculae (Nova 1670)
T. Kamiński, K. M. Menten, R. Tylenda +3
CK Vul is a star whose outburst was observed in 1670-72. A stellar-merger event was proposed to explain its ancient eruption. Aims: We aim to investigate the composition of the mol…
An observational study of dust nucleation in Mira ( Ceti): II. Titanium oxides are negligible for nucleation at high temperatures
T. Kamiński, H. S. P. Müller, M. R. Schmidt +7
The formation of silicate dust in oxygen-rich envelopes of evolved stars is thought to be initiated by formation of seed particles that can withstand the high temperatures close to…
An observational study of dust nucleation in Mira ( Ceti): I. Variable features of AlO and other Al-bearing species
T. Kamiński, K. T. Wong, M. R. Schmidt +8
Context: Dust is efficiently produced by cool giant stars, but the condensation of inorganic dust is poorly understood. Aims: Identify and characterize aluminum bearing species in…
Resolving the extended atmosphere and the inner wind of Mira ( Ceti) with long ALMA baselines
K. T. Wong, T. Kamiński, K. M. Menten +1
The prototypical Mira variable, Cet (Mira), has been observed as a Science Verification target in the 2014 ALMA Long Baseline Campaign with a longest baseline of 15 km. ALMA cl…
IRC-10414: a bow-shock-producing red supergiant star
V. V. Gvaramadze, K. M. Menten, A. Y. Kniazev +5
Most runaway OB stars, like the majority of massive stars residing in their parent clusters, go through the red supergiant (RSG) phase during their lifetimes. Nonetheless, although…
An Interferometric Spectral-Line and Imaging Survey of VY Canis Majoris in the 345 GHz Band
T. Kaminski, C. A. Gottlieb, K. H. Young +2
A spectral line survey of the oxygen-rich red supergiant VY Canis Majoris was made between 279 and 355 GHz with the Submillimeter Array. Two hundred twenty three spectral features…
PO and PN in the wind of the oxygen-rich AGB star IK Tau
E. De Beck, T. Kamiński, N. A. Patel +4
Phosphorus-bearing compounds have only been studied in the circumstellar environments (CSEs) of the asymptotic giant branch (AGB) star IRC +10216 and the protoplanetary nebula CRL…
Optical spectropolarimetry of V4332 Sagittarii
T. Kamiński, R. Tylenda
The eruption of V4332 Sgr was observed in 1994. During the outburst, the object became extremely red, so it has been considered as to belong to red transients of the V838 Mon type.…
OGLE-2002-BLG-360: from a gravitational microlensing candidate to an overlooked red transient
R. Tylenda, T. Kaminski, A. Udalski +9
OGLE-2002-BLG-360 was discovered as a microlensing candidate by the OGLE-III project. The subsequent light curve however clearly showed that the brightening of the object could not…
Dust-forming molecules in VY Canis Majoris (and Betelgeuse)
T. Kaminski, C. A. Gottlieb, M. R. Schmidt +7
The formation of inorganic dust in circumstellar environments of evolved stars is poorly understood. Spectra of molecules thought to be most important for the nucleation, i.e. AlO,…
Aluminium oxide in the optical spectrum of VY Canis Majoris
T. Kaminski, M. R. Schmidt, K. M. Menten
We report the first identification of the optical bands of the B-X system of AlO in the red supergiant VY CMa. In addition to TiO, VO, ScO, and YO, which were recognized in the opt…
The size, luminosity and motion of the extreme carbon star IRC+10216 (CW Leonis)
K. M. Menten, M. J. Reid, T. Kaminski +1
Very Large Array observations of the extreme carbon star IRC+10216 at 7 mm wavelength with 40 milli-arcsecond resolution resolve the object's radio emission, which forms an almost…
CO observations of water-maser post-AGB stars and detection of a high-velocity outflow in IRAS 15452-5459
L. Cerrigone, K. M. Menten, T. Kaminski
Many aspects of the evolutionary phase in which Asymptotic Giant Branch stars (AGB stars) are in transition to become Planetary Nebulae (PNe) are still poorly understood. An import…
High-resolution optical spectroscopy of V838 Monocerotis in 2009
R. Tylenda, T. Kamiński, M. Schmidt +2
V838 Mon erupted at the beginning of 2002. In the course of the outburst the object evolved to low effective temperatures and declined as a very late M-type supergiant. Among vario…
A molecular cloud within the light echo of V838 Monocerotis
T. Kamiński, R. Tylenda, S. Deguchi
Context. V838 Mon is an eruptive variable, which exploded in 2002. It displayed the most spectacular light echo ever observed. However, neither the origin of the reflecting matter…