226 citations · 1.3k across the 51 of their papers we have counts for
8 papers · 1 filter
Spitzer Space Telescope spectral observations of AGB stars in the Fornax dwarf spheroidal galaxy
M. Matsuura, A. A. Zijlstra, J. Bernard-Salas +10
We have observed five carbon-rich AGB stars in the Fornax dwarf spheroidal (dSph) galaxy, using the Infrared Spectrometer on board the Spitzer Space Telescope. The stars were selec…
Detection of a Far-Infrared Bow-Shock Nebula Around R Hya: the First MIRIAD Results
T. Ueta, A. K. Speck, R. E. Stencel +10
We present the first results of the MIRIAD (MIPS [Multiband Imaging Photometer for Spitzer] Infra-Red Imaging of AGB [asymptotic giant branch] Dustshells) project using the Spitzer…
A close look into the carbon disk at the core of the planetary nebula CPD-568032
Olivier Chesneau, Arnaud Collioud, Orsola De Marco +7
We present high spatial resolution observations of the dusty core of the Planetary Nebula with Wolf-Rayet central star CPD-568032. These observations were taken with the mid-infrar…
The light curve of the semiregular variable L2 Puppis: I. A recent dimming event from dust
T. R. Bedding, A. A. Zijlstra, A. Jones +5
The nearby Mira-like variable L2 Pup is shown to be undergoing an unprecedented dimming episode. The stability of the period rules out intrinsic changes to the star, leaving dust f…
The extended atmosphere and evolution of the RV Tau star R Scuti
M. Matsuura, I. Yamamura, A. A. Zijlstra +1
We analyze ISO/SWS spectra of the RV Tau star R Scuti. The infrared spectra are dominated by H2O emission bands. The near- and mid-infrared excess is attributed to H2O; the dust co…
Circumstellar masers in the Magellanic Clouds
Jacco Th. van Loon, Albert A. Zijlstra, Valentin Bujarrabal +1
We have searched for 22 GHz H2O and 43/86/129 GHz SiO masers in bright IRAS point sources in the SMC and LMC, to test whether the kinematics of the mass loss from these stars depen…
Deep HST+STIS Color-Magnitude Diagrams of the Dwarf Irregular Galaxy WLM: Detection of the Horizontal Branch
M. Rejkuba, D. Minniti, M. D. Gregg +3
We have obtained V and I-band photometry for 1886 stars down to I=27 and V=28 in the field of the dwarf irregular galaxy WLM, using deep STIS CL and LP-band images taken in the par…
Discovery of the first extra-galactic SiO maser
Jacco Th. van Loon, Albert A. Zijlstra, Valentin Bujarrabal +1
We report on the detection of SiO J=2--1 v=1 (86 GHz) maser emission from the red supergiant IRAS04553--6825 in the LMC. It has thereby become the first known source of SiO maser e…