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Related papers: Planetary Edge Trends (PET). I. The Inner Edge-Ste…

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Most stars and thus most planetary systems do not form in isolation. The larger star-forming environment affects protoplanetary disks in multiple ways: gravitational interactions with other stars truncate disks and alter the architectures…

Earth and Planetary Astrophysics · Physics 2022-09-09 Megan Reiter , Richrd J. Parker

We study the correlation between stellar mass and stellar metallicity in the Evolution and Assembly of GaLaxies and their Environments (EAGLE) suite of cosmological hydrodynamical simulations. At a given stellar mass, simulated galaxies…

Astrophysics of Galaxies · Physics 2018-05-17 María Emilia De Rossi , Richard G. Bower , Andreea S. Font , Joop Schaye , Tom Theuns

The degree of influence that environment and mass have on the stellar populations of early-type galaxies is uncertain. In this paper we present the results of a spectroscopic analysis of the stellar populations of early-type galaxies aimed…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Craig Harrison , Matthew Colless , Harald Kuntschner , Warrick Couch , Roberto De Propris , Michael Pracy

The widespread prevalence of close-in, nearly coplanar super-Earth- and sub-Neptune-sized planets in multiple-planet systems was one of the most surprising results from the Kepler mission. By studying a uniform sample of Kepler "multis"…

Earth and Planetary Astrophysics · Physics 2017-11-15 Sarah Millholland , Songhu Wang , Gregory Laughlin

ABRIDGED: We use HSTACS and NICMOS imaging to study the structure and colors of a sample of nine late-type spirals. We find: (1) A correlation between bulge and disks scale-lengths, and a correlation between the colors of the bulges and…

Astrophysics · Physics 2009-11-11 C. M. Carollo , C. Scarlata , M. Stiavelli , R. F. G. Wyse , L. Mayer

Exoplanets around different types of stars provide a window into the diverse environments in which planets form. This chapter describes the observed relations between exoplanet populations and stellar properties and how they connect to…

Earth and Planetary Astrophysics · Physics 2024-03-06 Gijs D. Mulders

We characterize stellar, gas, and dark matter mass distributions for 17 nearby massive disk galaxies from the PHANGS sample. This allows us to compute the gravitational potential that vertically confines the interstellar gas and determines…

We analyze the dynamics of gas-dust coupling in the presence of stellar radiation pressure in circumstellar gas disks, which are in a transitional stage between the gas-dominated, optically thick, primordial nebulae, and the dust-dominated,…

Astrophysics · Physics 2009-10-31 Taku Takeuchi , Pawel Artymowicz

(Abridged) Tentative correlations between the presence of dusty debris discs and low-mass planets have been presented. In parallel, detailed chemical abundance studies have reported different trends between samples of planet and non-planet…

Solar and Stellar Astrophysics · Physics 2015-06-24 J. Maldonado , C. Eiroa , E. Villaver , B. Montesinos , A. Mora

Over the past decade increasingly robust estimates of the dense molecular gas content in galaxy populations between redshift 0 and the peak of cosmic galaxy/star formation from redshift 1-3 have become available. This rapid progress has…

Astrophysics of Galaxies · Physics 2020-11-11 Linda J. Tacconi , Reinhard Genzel , Amiel Sternberg

Simulations of the collapse and fragmentation of turbulent molecular clouds and dense young clusters show that encounters between disc-surrounded stars are relatively common events which should significantly influence the resulting disc…

Astrophysics · Physics 2009-11-11 S. Pfalzner , S. Umbreit , Th. Henning

The study of protoplanetary disc evolution and planet formation has mainly concentrated on solar (and low) mass stars since they host the majority of the confirmed exoplanets. Nevertheless, the numerous planets found orbiting stars up to…

Earth and Planetary Astrophysics · Physics 2023-11-08 María Paula Ronco , Matthias R. Schreiber , Eva Villaver , Octavio M. Guilera , Marcelo M. Miller Bertolami

We present a physically motivated model for the manner in which a stellar magnetic field sculpts the inner edge of a protoplanetary disk, and examine the consequence for the migration and stopping of sub-Neptune and super-Earth planets.…

Earth and Planetary Astrophysics · Physics 2023-06-14 Tze Yeung Mathew Yu , Brad Hansen , Yasuhiro Hasegawa

The inner regions of protoplanetary disks, within ten astronomical units, are where terrestrial planets are born. By developing a new class of multi-dust radiative magnetized inner rim models, we can gain valuable insights into the…

Earth and Planetary Astrophysics · Physics 2025-09-24 Mario Flock , Ondřej Chrenko , Takahiro Ueda , Myriam Benisty , Jozsef Varga , Roy van Boekel

Magnetic interactions between a star and a close-in planet are postulated to be a source of enhanced emissions and to play a role in the secular evolution of the orbital system. Close-in planets generally orbit in the sub-alfv\'enic region…

Earth and Planetary Astrophysics · Physics 2015-12-23 A. Strugarek , A. S. Brun , S. P. Matt , V. Réville

Spectral line indices for a sample of 290 nearby E and S0 galaxies are used to investigate the stellar populations of these galaxies. Relations are established between the line indices (Mg2, <Fe>, Hbeta) and the velocity dispersions, the…

Astrophysics · Physics 2015-06-24 Inger Jorgensen

The planets within compact multi-planet systems tend to have similar sizes, masses, and orbital period ratios, like "peas in a pod". This pattern was detected when considering planets with radii between 1 and 4 $R_\oplus$. However, these…

Earth and Planetary Astrophysics · Physics 2021-10-27 Sarah C. Millholland , Joshua N. Winn

The growing body of observational data on extrasolar planets and protoplanetary disks has stimulated intense research on planet formation and evolution in the past few years. The extremely diverse, sometimes unexpected physical and orbital…

Earth and Planetary Astrophysics · Physics 2016-06-01 Clément Baruteau , Xuening Bai , Christoph Mordasini , Paul Mollière

Around 16% of the solar-like stars in our neighbourhood show IR-excesses due to debris discs and a fraction of them are known to host planets. We aim to determine in a homogeneous way the metallicity of a sample of stars with known debris…

Earth and Planetary Astrophysics · Physics 2015-06-04 J. Maldonado , C. Eiroa , E. Villaver , B. Montesinos , A. Mora

Using integral field spectroscopic data from the Mapping Nearby Galaxies at Apache Point Observatory survey, we investigate the spatially resolved properties and empirical relations of a star-forming galaxy and a non-star-forming galaxy…

Astrophysics of Galaxies · Physics 2024-07-17 Min Bao , Wenlong Zhao , Qirong Yuan