5k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR339 papers
- European Southern ObservatoryCL298 papers
- Center for Astrophysics Harvard & SmithsonianUS294 papers
- University of CambridgeGB274 papers
- Osservatorio Astronomico di PadovaIT271 papers
- University of WarwickGB256 papers
- Stockholm UniversitySE237 papers
- Max Planck Institute for AstrophysicsDE213 papers
- Las Cumbres Observatory Global Telescope NetworkUS211 papers
- AlbaNovaSE210 papers
- Space Telescope Science InstituteUS208 papers
- University of St AndrewsGB193 papers
27 papers · 2 filters
A CH3CN and HCO+ survey towards southern methanol masers associated with star formation
C. R. Purcell, R. Balasubramanyam, M. G. Burton +32
We present the initial results of a 3-mm spectral line survey towards 83 methanol maser selected massive star-forming regions. Here we report observations of the J=5-4 and 6-5 rota…
An investigation of Fe XV emission lines in solar flare spectra
F P Keenan, K M Aggarwal, D S Bloomfield +2
Previously, large discrepancies have been found between theory and observation for Fe XV emission line ratios in solar flare spectra covering the 224-327 A wavelength range, obtain…
B-type supergiants in the SMC: Rotational velocities and implications for evolutionary models
P. L. Dufton, R. S. I. Ryans, S. Simon-Diaz +2
High-resolution spectra for 24 SMC and Galactic B-type supergiants have been analysed to estimate the contributions of both macroturbulence and rotation to the broadening of their…
CaII K observations of QSOs in the line-of-sight to the Magellanic Bridge
J. V. Smoker, F. P. Keenan, H. M. A. Thompson +5
We describe medium-resolution spectroscopic observations taken with the ESO Multi-Mode Instrument in the CaII K line (3933.661 Angstroms) towards 7 QSOs located in the line-of-sigh…
Results from the Wide Angle Search for Planets Prototype (WASP0) III: Planet Hunting in the Draco Field
Stephen R. Kane, Andrew Collier Cameron, Keith Horne +5
The Wide Angle Search for Planets prototype (WASP0) is a wide-field instrument used to search for extra-solar planets via the transit method. Here we present the results of a monit…
Classical novae from the POINT-AGAPE microlensing survey of M31 -- II. Rate and statistical characteristics of the nova population
M. J. Darnley, M. F. Bode, E. Kerins +17
We report the results of our statistical study of the POINT-AGAPE CNe catalogue. The first Sloan and analysis of the MMRD relationship in M31 is performed using the resul…
Results from the Wide Angle Search for Planets Prototype (WASP0) II: Stellar Variability in the Pegasus Field
Stephen R. Kane, T. A. Lister, Andrew Collier Cameron +5
Recent wide-field photometric surveys which target a specific field for long durations are ideal for studying both long and short period stellar variability. Here we report on 75 v…
6^Li in the atmosphere of GJ 117
D. J. Christian, M. Mathioudakis, D. Jevremovic +2
We present high resolution VLT UVES observations of the active K dwarf GJ 117. 6^Li enhancement has been shown for energetic solar events, one chromospherically active binary, and…
Plasma Diagnostics of Active Region Evolution and Implications for Coronal Heating
R. O. Milligan, P. T. Gallagher, M. Mathioudakis +2
A detailed study is presented of the decaying solar active region NOAA 10103 observed with the Coronal Diagnostic Spectrometer (CDS), the Michelson Doppler Imager (MDI) and the Ext…
The nuclei of comets 7P/Pons-Winnecke, 14P/Wolf and 92P/Sanguin
C. Snodgrass, A. Fitzsimmons, S. C. Lowry
Jupiter Family comets (JFCs) are short period comets which have recently entered the inner solar system, having previously orbited in the Kuiper Belt since the formation of the pla…
The circumstellar environment of Wolf-Rayet stars & Gamma-ray burst afterglows
J. J. Eldridge, F. Genet, F. Daigne +1
We study the evolution of the circumstellar medium of massive stars. We pay particular attention to Wolf-Rayet stars that are thought to be the progenitors of some long Gamma-Ray B…
RHESSI and SOHO/CDS Observations of Explosive Chromospheric Evaporation
R. O. Milligan, P. T. Gallagher, M. Mathioudakis +3
Simultaneous observations of explosive chromospheric evaporation are presented using data from the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) and the Coronal Dia…
Luminosity and mass limits for the progenitor of the type Ic supernova 2004gt in NGC 4038
Justyn R. Maund, Stephen Smartt, Francois Schweizer
We report our attempts to locate the progenitor of the type Ic SN 2004gt in NGC 4038. We use high resolution HST ACS images of SN 2004gt and have compared them with deep pre-explos…
The Progenitor of SN 2005cs in the Whirlpool Galaxy
J. R. Maund, S. J. Smartt, I. J. Danziger
The progenitor of SN 2005cs, in the galaxy M51, is identified in pre-explosion HST ACS WFC imaging. Differential astrometry, with post-explosion ACS HRC F555W images, permitted the…
A Survey of Eclipsing Binary Stars in the Eastern Spiral Arm of M31
Ian Todd, Don Pollacco, Ian Skillen +3
Results of an archival survey are presented using B-band imaging of the eastern spiral arm of M31. Focusing on the eclipsing binary star population, a matched-filter technique has…
A dearth of planetary transits in the direction of NGC 6940
Ben Hood, Andrew Collier Cameron, Stephen R. Kane +10
We present results of our survey for planetary transits in the field of NGC 6940. We think nearly all of our observed stars are field stars. We have obtained high precision (3-10 m…
The VLT-FLAMES Survey of Massive Stars: Observations in the Galactic Clusters NGC 3293, NGC 4755 and NGC 6611
C. J. Evans, S. J. Smartt, J. -K. Lee +23
We introduce a new survey of massive stars in the Galaxy and the Magellanic Clouds using the Fibre Large Array Multi-Element Spectrograph (FLAMES) instrument at the Very Large Tele…
The application of a Trous wave filtering and Monte Carlo analysis on SECIS 2001 solar eclipse observations
A. C. Katsiyannis, F. Murtagh
8000 images of the Solar corona were captured during the June 2001 total Solar eclipse. New software for the alignment of the images and an automated technique for detecting intens…
Fe XI emission lines in a high resolution extreme ultraviolet spectrum obtained by SERTS
F. P. Keenan, K. M. Aggarwal, R. S. I. Ryans +5
New calculations of radiative rates and electron impact excitation cross sections for Fe XI are used to derive emission line intensity ratios involving 3s^23p^4 - 3s^23p^33d transi…
POINT-AGAPE Pixel Lensing Survey of M31 : Evidence for a MACHO contribution to Galactic Halos
S. Calchi Novati, S. Paulin-Henriksson, J. An +15
The POINT-AGAPE collaboration is carrying out a search for gravitational microlensing toward M31 to reveal galactic dark matter in the form of MACHOs (Massive Astrophysical Compact…
A non-LTE analysis of the spectra of two narrow lined main sequence stars in the SMC
I. Hunter, P. L. Dufton, R. S. I. Ryans +4
An analysis of high-resolution VLT/UVES spectra of two B-type main sequence stars, NGC 346-11 and AV 304, in the Small Magellanic Cloud (SMC), has been undertaken, using the non-LT…
Spectroscopy of the type Ia supernova SN 2002er: days -11 to +215
Rubina Kotak, Peter Meikle, Giuliano Pignata +8
We present an extensive set of optical spectroscopy of the nearby type Ia supernova, SN 2002er, with 24 epochs spanning -11 to +34 days. Its spectral evolution is fairly typical of…
A Survey for Planetary Transits in the Field of NGC 7789
D. M. Bramich, Keith Horne, I. A. Bond +12
We present results from 30 nights of observations of the open cluster NGC 7789 with the WFC camera on the INT telescope in La Palma. From ~900 epochs, we obtained lightcurves and S…
Flare X-ray observations of AB Dor: evidence for Stellar Coronal Opacity
M. Matranga, M. Mathioudakis, H. R. M. Kay +1
X-ray spectra of the late-type star AB Dor, obtained with the XMM-Newton satellite are analysed. AB Dor was particularly active during the observations. An emission measure reconst…