Publications (7)
Using Stellar Spectral Energy Distributions to Measure Exoplanet Parameters
Sam Morrell, Tim Naylor, John Southworth +1
The ability to make accurate determinations of planetary parameters is inextricably linked to measuring physical parameters of the host star, in particular the stellar radius. In t…
Characterising the orbit and circumstellar environment of the high-mass binary MWC 166 A
Sebastian A. Zarrilli, Stefan Kraus, Alexander Kreplin +13
Context: Stellar evolution models are highly dependent on accurate mass estimates, especially for high-mass stars in the early stages of evolution. The most direct method for obtai…
Detection of Na, K and HO in the hazy atmosphere of WASP-6b
Aarynn L. Carter, Nikolay Nikolov, David K. Sing +13
We present new observations of the transmission spectrum of the hot Jupiter WASP-6b both from the ground with the Very Large Telescope (VLT) FOcal Reducer and Spectrograph (FORS2)…
Gaia 17bpi: An FU Ori Type Outburst
Lynne A. Hillenbrand, Carlos Contreras Peña, Sam Morrell +7
We report on the source Gaia 17bpi and identify it as a new, ongoing FU Ori type outburst, associated with a young stellar object. The optical lightcurve from Gaia exhibited a 3.5…
gr8stars I: A homogeneous spectroscopic study of bright FGKM dwarfs and a public library of their high-resolution spectra
Alix Violet Freckelton, Annelies Mortier, Megan Bedell +15
As the fields of stellar and exoplanetary study grow and revolutionary new detection instruments are created, it is imperative that a homogeneous, precise source of stellar paramet…
Exploring the M-dwarf Luminosity--Temperature--Radius Relationships using Gaia DR2
Sam Morrell, Tim Naylor
There is growing evidence that M-dwarf stars suffer radius inflation when compared to theoretical models, suggesting that models are missing some key physics required to completely…
gr8stars II : judgement day for spectroscopic parameter model systematics
Alix Violet Freckelton, Annelies Mortier, Megan Bedell +18
Many areas of astrophysics, including exoplanetary studies, rely on precise and accurate stellar parameters. This demands that uncertainties on these parameters truly reflect all b…