Dr. Melissa J. Hobson

Dr. Melissa J. Hobson

I'm an astrophysicist working on exoplanet detection and characterization.

Posts by Collection

portfolio

publications

Sistemas exoplanetarios múltiples: estadísticas y clasificación

Published in Boletín de la Asociación Argentina de Astronomía, 2015

This paper (in Spanish) presents statistical analyses of the physical properties of both the host stars and the planets of multiplanetary systems.

Recommended citation: Hobson, M.J. et al. (2015). "Sistemas exoplanetarios múltiples: estadísticas y clasificación" Boletín de la Asociación Argentina de Astronomía. 618, A103. http://astronomiaargentina.fcaglp.unlp.edu.ar/b57/2015BAAA...57...260H.pdf

Testing the Planet-Metallicity Correlation in M-dwarfs with Gemini GNIRS Spectra

Published in Revista Mexicana de Astronomía y Astrofísica, 2017

This paper uses Gemini GNIRS spectra to confirm the giant planet - metallicity correlation for M-dwarfs.

Recommended citation: Hobson, M.J. et al. (2018). "The SOPHIE search for northern extrasolar planets XIII. Two planets around M-dwarfs Gl617A and Gl96" Revista Mexicana de Astronomía y Astrofísica. 54, 65. https://www.astroscu.unam.mx/rmaa/RMxAA..54-1/PDF/RMxAA..54-1_mhobson-V.pdf

The SPIRou wavelength calibration for precise radial velocities in the near infrared

Published in Astronomy & Astrophysics, 2021

This paper describes the development of the SPIRou wavelength calibration using a UNe hollow-cathode lamp and a Fabry-Pérot étalon.

Recommended citation: Hobson, M.J. et al. (2021). "The SPIRou wavelength calibration for precise radial velocities in the near infrared." Astronomy & Astrophysics. 648, A48. https://www.aanda.org/articles/aa/full_html/2021/04/aa38413-20/aa38413-20.html

TOI-199 b: A Well-characterized 100 day Transiting Warm Giant Planet with TTVs Seen from Antarctica

Published in The Astronomical Journal, 2023

This paper presents the confirmation and characterization of the transiting warm giant TOI-199 b, and the discovery of the nontransiting planet TOI-199 c from RVs and TTVs.

Recommended citation: Hobson, M.J. et al. (2023). "TOI-199 b: A Well-characterized 100 day Transiting Warm Giant Planet with TTVs Seen from Antarctica" The Astronomical Journal. 166, 201. https://iopscience.iop.org/article/10.3847/1538-3881/acfc1d

Three super-Earths and a possible water world from TESS and ESPRESSO

Published in Astronomy & Astrophysics, 2024

This paper presents the confirmation and characterization of TOI-260 b, a super-Earth in the radius valley; and TOI-286 b and c, a super-Earth and water world spanning the radius valley. We also update parameters for the known super-Earth TOI-134 b.

Recommended citation: Hobson, M.J. et al. (2024). "Three super-Earths and a possible water world from TESS and ESPRESSO" Astronomy & Astrophysics, 688, 216H. https://www.aanda.org/articles/aa/full_html/2024/08/aa50505-24/aa50505-24.html

talks

Exoplanets with Radial Velocities and Transits: an Overview

Published:

An invited overview talk of the history of exoplanet detections through radial velocities and transits, with particular focus on two exoplanet populations not fonud in the Solar Sytem: Warm giants, and super-Earths and Mini-Neptunes.

The ESPRESSO follow-up of transiting exoplanets: perspectives for PLATO

Published:

Between 2018 and 2023, the ESPRESSO consortium followed up some 50 stars hosting small transiting planet candidates from K2 and TESS, as part of the ESPRESSO Guaranteed Time Observations (GTO). In this presentation, I focussed on the lessons learned from this program that should be kept in mind for the follow-up of the PLATO targets, with emphasis on the mitigation of stellar activity.

teaching

Teaching experience 1

Undergraduate course, University 1, Department, 2014

This is a description of a teaching experience. You can use markdown like any other post.

Teaching experience 2

Workshop, University 1, Department, 2015

This is a description of a teaching experience. You can use markdown like any other post.