Search Publications
Pre-flight Calibration and Near-Earth Commissioning Results of the Mercury Plasma Particle Experiment (MPPE) Onboard MMO (Mio)
Zong, Qiugang; Barabash, Stas; Bruno, Roberto +73 more
BepiColombo Mio (previously called MMO: Mercury Magnetospheric Orbiter) was successfully launched by Ariane 5 from Kourou, French Guiana on October 20, 2018. The Mercury Plasma/Particle Experiment (MPPE) is a comprehensive instrument package onboard Mio spacecraft used for plasma, high-energy particle and energetic neutral atom measurements. It co…
One star, two star, red star, blue star: an updated planetary nebula central star distance catalogue from Gaia EDR3
Walton, N. A.; Chornay, N.
Context. Planetary nebulae (PNe) are a brief but important phase of stellar evolution. The study of Galactic PNe has historically been hampered by uncertain distances, but the parallaxes of PN central stars (CSPNe) measured by Gaia are improving the situation.
Aims: Gaia's Early Data Release 3 (EDR3) offers higher astrometric precision and gr…
Transforming gas-rich low-mass disky galaxies into ultra-diffuse galaxies by ram pressure
Fabricant, Daniel; Yagi, Masafumi; Afanasiev, Anton V. +4 more
Faint extended elliptically shaped ultra-diffuse galaxies and slightly brighter and more compact dwarf elliptical and lenticular stellar systems are common in galaxy clusters. Their poorly constrained evolutionary paths can be studied by identifying young ultra-diffuse galaxy and dwarf elliptical analogues populated with bright, massive stars. Usi…
A Parametric Galactic Model toward the Galactic Bulge Based on Gaia and Microlensing Data
Bennett, David P.; Koshimoto, Naoki; Baba, Junichi
We developed a parametric Galactic model toward the Galactic bulge by fitting to spatial distributions of the Gaia DR2 disk velocity, VVV proper motion, BRAVA radial velocity, OGLE-III red clump star count, and OGLE-IV star count and microlens rate, optimized for use in microlensing studies. We include the asymmetric drift of Galactic disk stars a…
Gravity, Geodesy and Fundamental Physics with BepiColombo's MORE Investigation
Longo, F.; Klioner, S.; Fienga, A. +37 more
The Mercury Orbiter Radio Science Experiment (MORE) of the ESA mission BepiColombo will provide an accurate estimation of Mercury's gravity field and rotational state, improved tests of general relativity, and a novel deep space navigation system. The key experimental setup entails a highly stable, multi-frequency radio link in X and Ka band, enab…
GAMA/DEVILS: constraining the cosmic star formation history from improved measurements of the 0.3-2.2 µm extragalactic background light
Obreschkow, Danail; Hopkins, Andrew M.; Driver, Simon P. +12 more
We present a revised measurement of the optical extragalactic background light (EBL), based on the contribution of resolved galaxies to the integrated galaxy light (IGL). The cosmic optical background radiation (COB), encodes the light generated by star formation, and provides a wealth of information about the cosmic star formation history (CSFH).…
Galactic rotation curve and dark matter according to gravitomagnetism
Ludwig, G. O.
Historically, the existence of dark matter has been postulated to resolve discrepancies between astrophysical observations and accepted theories of gravity. In particular, the measured rotation curve of galaxies provided much experimental support to the dark matter concept. However, most theories used to explain the rotation curve have been restri…
The evolution of the size-mass relation at z = 1-3 derived from the complete Hubble Frontier Fields data set
Treu, Tommaso; Bradač, Maruša; Birrer, Simon +3 more
We measure the size-mass relation and its evolution between redshifts 1 < z < 3, using galaxies lensed by six foreground Hubble Frontier Fields clusters. The power afforded by strong gravitation lensing allows us to observe galaxies with higher angular resolution beyond current facilities. We select a stellar mass limited sample and divide t…
Late-time acceleration due to a generic modification of gravity and the Hubble tension
Gangopadhyay, Mayukh R.; Sami, M.; Sharma, Mohit K. +1 more
We consider a scenario of modified gravity, which is generic to late-time acceleration, namely, acceleration in the Jordan frame and no acceleration in the Einstein frame. The possibility is realized by assuming an interaction between dark matter and the baryonic component in the Einstein frame which is removed by going to the Jordan frame using a…
TESS Delivers Five New Hot Giant Planets Orbiting Bright Stars from the Full-frame Images
Henning, Thomas; Barclay, Thomas; Vanderburg, Andrew +115 more
We present the discovery and characterization of five hot and warm Jupiters—TOI-628 b (TIC 281408474; HD 288842), TOI-640 b (TIC 147977348), TOI-1333 b (TIC 395171208, BD+47 3521A), TOI-1478 b (TIC 409794137), and TOI-1601 b (TIC 139375960)—based on data from NASA's Transiting Exoplanet Survey Satellite (TESS). The five planets were identified fro…