705 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Commonwealth Scientific and Industrial Research OrganisationAU25 papers
- UNSW SydneyAU24 papers
- Center for Astrophysics Harvard & SmithsonianUS16 papers
- Centre National de la Recherche ScientifiqueFR14 papers
- Australia Telescope National FacilityAU13 papers
- The University of SydneyAU13 papers
- University of LeedsGB12 papers
- Western Sydney UniversityAU12 papers
- Australian National UniversityAU11 papers
- University College LondonGB11 papers
- University of Southern QueenslandAU10 papers
- University of ManchesterGB9 papers
19 papers · 1 filter
TESS Data for Asteroseismology (T'DA) Stellar Variability Classification Pipeline: Set-Up and Application to the Kepler Q9 Data
Jeroen Audenaert, James S. Kuszlewicz, Rasmus Handberg +16
The NASA Transiting Exoplanet Survey Satellite (TESS) is observing tens of millions of stars with time spans ranging from 27 days to about 1 year of continuous observations.…
General classification of light curves using extreme boosting
Refilwe Kgoadi, Chris Engelbrecht, Ian Whittingham +1
A significant degree of misclassification of variable stars through the application of machine learning methods to survey data motivates a search for more reliable and accurate mac…
The Secret Lives of Cepheids: A Multi-Wavelength Study of the Atmospheres and Real-Time Evolution of Classical Cepheids
Scott G. Engle
The primary goal of this study is to observe how complex the behaviors of Cepheids can be, and to show how the continued monitoring of Cepheids at multiple wavelengths can begin to…
The Secret Lives of Cepheids: Evolutionary Changes and Pulsation-Induced Shock Heating in the Prototype Classical Cepheid δ Cep
Scott G. Engle, Edward F. Guinan, Graham M. Harper +2
Over the past decade, the Secret Lives of Cepheids (SLiC) program has been carried out at Villanova University to study aspects and behaviors of classical Cepheids that are still n…
Recovering Joys Law as a Function of Solar Cycle, Hemisphere, and Longitude
Bruce H. McClintock, Aimee A. Norton
Bipolar active regions in both hemispheres tend to be tilted with respect to the East West equator of the Sun in accordance with Joys law that describes the average tilt angle as a…
A high-resolution spectropolarimetric survey of Herbig Ae/Be stars - II. Rotation
E. Alecian, G. A. Wade, C. Catala +5
We report the analysis of the rotational properties of our sample of Herbig Ae/Be (HAeBe) and related stars for which we have obtained high-resolution spectropolarimetric observati…
A high-resolution spectropolarimetric survey of Herbig Ae/Be stars - I. Observations and measurements
E. Alecian, G. A. Wade, C. Catala +7
This is the first in a series of papers in which we describe and report the analysis of a large survey of Herbig Ae/Be stars in circular spectropolarimetry. Using the ESPaDOnS and…
The Rise of the Remarkable Type IIn Supernova SN 2009ip
J. L. Prieto, J. Brimacombe, A. J. Drake +1
Recent observations by Mauerhan et al. have shown the unprecedented transition of the previously identified luminous blue variable (and supernova impostor) SN 2009ip to a real Type…
Discovery of a magnetic field in the early B-type star sigma Lupi
H. F. Henrichs, K. Kolenberg, B. Plaggenborg +7
Magnetic early B-type stars are rare. To identify them, we use the strongest indirect indicator of a magnetic field in B stars, which is periodic variability of UV stellar wind lin…
Direct observation of magnetic cycles in Sun-like stars
A. Morgenthaler, P. Petit, J. Morin +4
A sample of 19 solar-type stars, probing masses between 0.6 and 1.4 solar mass and rotation periods between 3.4 and 43 days, was regularly observed using the NARVAL spectropolarime…
High Resolution Spectroscopy and Spectropolarimetry of some late F-/early G-type sun-like stars as targets for Zeeman Doppler imaging
Ian Waite, Stephen Marsden, Brad Carter +4
High resolution spectroscopy and spectropolarimetry have been undertaken at the Anglo-Australian Telescope in order to identify suitable targets for magnetic studies of young sun-l…
Long-term magnetic field monitoring of the Sun-like star ξBootis A
A. Morgenthaler, P. Petit, S. Saar +13
Aims. We aim to investigate the long-term temporal evolution of the magnetic field of the solar-type star ξBootis A, both from direct magnetic field measurements and from the simul…
Magnetic fields and differential rotation on the pre-main sequence III: The early-G star HD 106506
I. A. Waite, S. C. Marsden, B. D. Carter +5
We present photometry and spectropolarimetry of the pre-main sequence star HD 106506. A photometric rotational period of ~1.416 +/- 0.133 days has been derived using observations a…
Magnetic fields and differential rotation on the pre-main sequence II: The early-G star HD 141943 - coronal magnetic field, H-alpha emission and differential rotation
S. C. Marsden, M. M. Jardine, J. C. Ramírez Vélez +8
Spectropolarimetric observations of the pre-main sequence early-G star HD 141943 were obtained at three observing epochs (2007, 2009 and 2010). The observations were obtained using…
Magnetic fields and differential rotation on the pre-main sequence I: The early-G star HD 141943 - brightness and magnetic topologies
S. C. Marsden, M. M. Jardine, J. C. Ramírez Vélez +8
Spectroscopic and spectropolarimetric observations of the pre-main sequence early-G star HD 141943 were obtained at four observing epochs (in 2006, 2007, 2009 and 2010). The observ…
Solar-Cycle Characteristics Examined in Separate Hemispheres: Phase, Gnevyshev Gap, and Length of Minimum
A. A. Norton, J. C. Gallagher
Research results from solar-dynamo models show the northern and southern hemispheres may evolve separately throughout the solar cycle. The observed phase lag between the hemisphere…
Hot high-mass accretion disk candidates
H. Beuther, A. J. Walsh, S. N. Longmore
To better understand the physical properties of accretion disks in high-mass star formation, we present a study of a 12 high-mass accretion disk candidates observed at high spatial…
The Sun in Time: Age, Rotation, and Magnetic Activity of the Sun and Solar-type Stars and Effects on Hosted Planets
Edward F. Guinan, Scott G. Engle
Multi-wavelength studies of solar analogs (G0-5 V stars) with ages from ~50 Myr to 9 Gyr have been carried out as part of the "Sun in Time" program for nearly 20 yrs. From these st…
Molecular line mapping of the giant molecular cloud associated with RCW 106 - III. Multi-molecular line mapping
N. Lo, M. R. Cunningham, P. A. Jones +10
We present multi-molecular line maps obtained with the Mopra Telescope towards the southern giant molecular cloud (GMC) complex G333, associated with the HII region RCW 106. We hav…