中文
相关论文

相关论文: MOCKA -- A PLATO mock asteroseismic catalogue: Sim…

200 篇论文

In the last years, the Observatory of Padova (Istituto Nazionale di Astrofisica - Osservatorio Astronomico di Padova) and the University of Padova have been involved massively in projects dedicated to the exoplanets search, both ground, and…

天体物理仪器与方法 · 物理学 2020-12-15 Gabriele Umbriaco

Taking advantage of $\sim4700$ deg$^2$ optical coverage of the Southern sky offered by the VST ATLAS survey, we construct a new catalogue of photometrically selected galaxy groups and clusters using the {\sc orca} cluster detection…

宇宙学与河外天体物理 · 物理学 2023-02-08 B. Ansarinejad , D. N. A. Murphy , T. Shanks , N. Metcalfe

We present a new clustering method, Significance Mode Analysis (SigMA), to extract co-spatial and co-moving stellar populations from large-scale surveys such as ESA Gaia. The method studies the topological properties of the density field in…

NASA's Transiting Exoplanet Survey Satellite (TESS) has begun a two-year survey of most of the sky, which will include lightcurves for thousands of solar-like oscillators sampled at a cadence of two minutes. To prepare for this steady…

太阳与恒星天体物理 · 物理学 2018-12-26 Warrick H. Ball , William J. Chaplin , Mathew Schofield , Andrea Miglio , Diego Bossini , Guy R. Davies , Léo Girardi

Asteroseismic modelling of the internal structure of main-sequence stars born with a convective core has so far been based on homogeneous analyses of space photometric Kepler light curves of 4 years duration, to which most often incomplete…

Most future surveys designed to discover transiting exoplanets, including TESS and PLATO, will target bright (V<13) and nearby solar-type stars having a spectral type later than F5. In order to enhance the probability of identifying…

This work presents an extensive analysis of the properties of three southern semi-detached eclipsing binaries hosting a pulsating component, namely HM Pup, V632 Sco, and TT Vel. Systematic multi-filtered photometric observations were…

太阳与恒星天体物理 · 物理学 2022-07-27 A. Liakos , D. J. W. Moriarty , M. G. Blackford , J. F. West , P. Evans , C. M. Moriarty , S. M. Sweet

This is the fourth in a series of papers that aim both to provide reasonable orbits for a number of eclipsing binaries and to evaluate the expected performance of Gaia of these objects and the accuracy that is achievable in the…

天体物理学 · 物理学 2009-11-11 E. F. Milone , U. Munari , P. M. Marrese , M. D. Williams , T. Zwitter , J. Kallrath , T. Tomov

We constructed the magnetic field oscillation model (hereafter the MO model) by analogizing the periodically reversing phenomenon of the solar magnetic field to pulsars. Almost all kinds of pulsar radiation phenomena are best explained…

天体物理学 · 物理学 2017-09-14 Zhu-Xing Liang , Yi Liang

*Context*. In the framework of the PLATO mission, to be launched in late 2026, seismic inversion techniques will play a key role in the mission precision requirements of the stellar mass, radius, and age. It is therefore relevant to discuss…

太阳与恒星天体物理 · 物理学 2023-10-31 Jérôme Bétrisey , Gaël Buldgen , Daniel R. Reese , Georges Meynet

We present detailed asteroseismic modelling of 95 main-sequence solar-like stars and Kepler exoplanet host stars using the FICO procedure, a three-step method that combines forward and inverse techniques that enables precise inference of…

太阳与恒星天体物理 · 物理学 2026-05-01 Jérôme Bétrisey , Daniel R. Reese , Camilla Pezzotti , Marie-Jo Goupil , Margarida S. Cunha

We have searched for planetary companions around 800 pulsars monitored at the Jodrell Bank Observatory, with both circular and eccentric orbits of periods between $20$ days and $17$ years and inclination-dependent planetary masses from…

地球与行星天体物理 · 物理学 2022-03-14 Iuliana C. Niţu , Michael J. Keith , Ben W. Stappers , Andrew G. Lyne , Mitchell B. Mickaliger

One of the main objectives of stage IV galaxy surveys is to constrain gravity on cosmological scales. To this end, it is crucial to make accurate theoretical predictions in the nonlinear regime of structure formation in order to maximise…

宇宙学与河外天体物理 · 物理学 2023-03-14 Bartolomeo Fiorini

The scientific exploitation of the Dark Energy Spectroscopic Instrument Bright Galaxy Survey (DESI BGS) data requires the construction of mocks with galaxy population properties closely mimicking those of the actual DESI BGS targets. We…

宇宙学与河外天体物理 · 物理学 2021-05-12 Sasha Safonova , Peder Norberg , Shaun Cole

Next generation galaxy surveys demand the development of massive ensembles of galaxy mocks to model the observables and their covariances, what is computationally prohibitive using $N$-body simulations. COLA is a novel method designed to…

宇宙学与河外天体物理 · 物理学 2016-04-07 Albert Izard , Martin Crocce , Pablo Fosalba

During the last two years we have received long time-series photometric observations of bright (V mag < 8) main-sequence A- and B-type stars observed by the NASA TESS spacecraft and the Austria-Poland-Canada BRITE satellites. Using TESS…

Pulsating stars in eclipsing binary systems are powerful tools to test stellar models. Binarity enables to constrain the pulsating component physical parameters, whose knowledge drastically improves the input physics for asteroseismic…

太阳与恒星天体物理 · 物理学 2015-06-12 C. Maceroni , J. Montalbán , D. Gandolfi , K. Pavlovski , M. Rainer

MONS is the scientific project on the Danish Roemer satellite mission, which is being developed as part of the Danish Small Satellite Programme. The principal goal is to study solar-like oscillations in around 20 bright stars, with a…

天体物理学 · 物理学 2007-05-23 J. Christensen-Dalsgaard

Chance-aligned sources or blended companions can cause false positives in planetary transit detections or simply bias the determination of the candidate properties. In the era of high-precision space-based photometers, the need for…