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26 papers
A search for cool molecular gas in GK Persei and other classical novae
Tomek Kaminski, Helena J. Mazurek, Karl M. Menten +1
Detecting molecular line emission from classical nova remnants has the potential of revealing information on the composition of the ejecta, in particular, it can deliver accurate i…
The Nearby Evolved Stars Survey II: Constructing a volume-limited sample and first results from the James Clerk Maxwell Telescope
P. Scicluna, F. Kemper, I. McDonald +89
The Nearby Evolved Stars Survey (NESS) is a volume-complete sample of 850 Galactic evolved stars within 3\,kpc at (sub-)mm wavelengths, observed in the CO (21) and…
Multiwavelength Observations of the RV Tauri Variable System U Monocerotis: Long-Term Variability Phenomena That Can Be Explained by Binary Interactions with a Circumbinary Disk
Laura D. Vega, Keivan G. Stassun, Rodolfo Montez +7
We present X-ray through submillimeter observations of the classical RV Tauri (RVb-type) variable U Mon, a post-AGB binary with a circumbinary disk (CBD). Our SMA observations indi…
Molecular remnant of Nova 1670 (CK Vulpeculae). II. A three-dimensional view on the gas distribution and velocity field
T. Kamiński, W. Steffen, V. Bujarrabal +3
CK Vul is the remnant of an energetic eruption known as Nova 1670 that is thought to be caused by a stellar merger. The remnant is composed of (1) a large hourglass nebula of recom…
Molecular remnant of Nova 1670 (CK Vulpeculae): I. Properties and enigmatic origin of the gas
T. Kaminski, K. M. Menten, R. Tylenda +5
CK Vul erupted in 1670 and is considered a stellar-merger candidate. Its remnant contains a molecular component of surprisingly rich composition. We present interferometric line su…
SiO maser astrometry of the red transient V838 Monocerotis
Gisela N. Ortiz-Leon, Karl M. Menten, Tomasz Kaminski +3
We present multi-epoch observations with the VLBA of SiO maser emission in the v=1, J=1-0 transition at 43 GHz from the remnant of the red nova V838 Mon. We model the positions of…
Cool, evolved stars: results, challenges, and promises for the next decade
Gioia Rau, Rodolfo Montez, Kenneth G. Carpenter +27
Cool, evolved stars are the main source of chemical enrichment of the interstellar medium (ISM), and understanding their mass loss and structure offers a unique opportunity to stud…
On massive dust clumps in the envelope of the red supergiant VY Canis Majoris
Tomek Kaminski
The envelope of the red supergiant VY CMa has long been considered an extreme example of episodic mass loss that is possibly taking place in other cool and massive evolved stars. R…
Molecular dust precursors in envelopes of oxygen-rich AGB stars and red supergiants
Tomasz Kamiński
Condensation of circumstellar dust begins with formation of molecular clusters close to the stellar photosphere. These clusters are predicted to act as condensation cores at lower…
Astronomical detection of a radioactive molecule 26AlF in a remnant of an ancient explosion
Tomasz Kamiński, Romuald Tylenda, Karl M. Menten +6
Decades ago, -ray observatories identified diffuse Galactic emission at 1.809 MeV originating from decays of an isotope of aluminium, Al, that has a mean-life time…
Detection of interstellar ortho-D2H+ with SOFIA
Jorma Harju, Olli Sipilä, Sandra Brünken +9
We report on the detection of the ground-state rotational line of ortho-D2H+ at 1.477 THz (203 micron) using the German REceiver for Astronomy at Terahertz frequencies (GREAT) onbo…
Enabling New ALMA Science with Improved Support for Time-Domain Observations
Kate D. Alexander, Edo Berger, Geoff Bower +34
While the Atacama Large Millimeter/submillimeter Array (ALMA) is a uniquely powerful telescope, its impact in certain fields of astrophysics has been limited by observatory policie…
Spatial distribution and kinematics of the molecular material associated with Carinae
L. Loinard, T. Kaminski, P. Serra +3
Single-dish sub-millimeter observations have recently revealed the existence of a substantial, chemically peculiar, molecular gas component located in the innermost circumstellar e…
ALMA Observations of Asteroid 3 Juno at 60 Kilometer Resolution
ALMA Partnership, T. R. Hunter, R. Kneissl +67
We present Atacama Large Millimeter/submillimeter Array (ALMA) 1.3 mm continuum images of the asteroid 3 Juno obtained with an angular resolution of 0.042 arcseconds (60 km at 1.97…
First Results from High Angular Resolution ALMA Observations Toward the HL Tau Region
ALMA Partnership, C. L. Brogan, L. M. Perez +82
We present Atacama Large Millimeter/submillimeter Array (ALMA) observations from the 2014 Long Baseline Campaign in dust continuum and spectral line emission from the HL Tau region…
Post-outburst spectra of a stellar-merger remnant of V1309 Scorpii: from a twin of V838 Monocerotis to a clone of V4332 Sagittarii
Tomasz Kaminski, Elena Mason, Romulad Tylenda +1
We present optical and infrared spectroscopy of V1309 Sco, an object that erupted in 2008 in a stellar-merger event. During the outburst, V1309 Sco displayed characteristics typica…
Nuclear ashes and outflow in the eruptive star Nova Vul 1670
Tomasz Kaminski, Karl M. Menten, Romuald Tylenda +3
CK Vulpeculae was observed in outburst in 1670-16721, but no counterpart was seen until 1982, when a bipolar nebula was found at its location. Historically, CK Vul has been conside…
V838 Monocerotis: the central star and its environment a decade after outburst
Olivier Chesneau, Florentin Millour, Orsola De Marco +8
Aims. V838 Monocerotis erupted in 2002, brightened in a series of outbursts, and eventually developed a spectacular light echo. A very red star emerged a few months after the outbu…
Physical conditions of molecular gas in the Circinus galaxy: Multi-J CO and CI 1-0 observations
Zhi-Yu Zhang, Christian Henkel, Yu Gao +6
We report mapping observations of the CO , , , and transitions and the CI 492 GHz transition toward the central 4040 region of the Circi…
Pure rotational spectra of TiO and TiO_2 in VY Canis Majoris
T. Kaminski, C. A. Gottlieb, K. M. Menten +7
We report the first detection of pure rotational transitions of TiO and TiO_2 at (sub-)millimeter wavelengths towards the red supergiant VY CMa. A rotational temperature, T_rot, of…
Light echo of V838 Monocerotis: properties of the echoing medium
Romuald Tylenda, Tomasz Kaminski
The light echo phenomenon that accompanied the 2002 eruption of V838 Mon allows one to study the properties of the diffuse dusty matter in the vicinity of the object. We are aiming…
Strong linear polarization of V4332 Sgr: a dusty disc geometry
T. Kaminski, R. Tylenda
The eruption of V4332 Sgr was observed in 1994. During the outburst, the object became extremely red, so it is considered as belonging to luminous red transients of the V838 Mon ty…
V4332 Sagittarii: A circumstellar disc obscuring the main object
T. Kaminski, M. Schmidt, R. Tylenda
V4332 Sgr experienced an outburst in 1994 whose observational characteristics in many respects resemble those of the eruption of V838 Mon in 2002. It has been proposed that these o…
An analysis of a spectrum of V838 Monocerotis in October 2005
R. Tylenda, T. Kaminski, M. Schmidt
V838 Mon erupted at the beginning of 2002. Among various scenarios proposed to explain the nature of the outburst, the most promising is a stellar merger event. The results of spec…