Results 31 to 40 of about 220,237 (344)

Surface brightness fluctuation spectra to constrain stellar population properties [PDF]

Monthly Notices of the Royal Astronomical Society, 2020
ABSTRACT We present a new set of surface brightness fluctuation (SBF) spectra computed with the E-MILES stellar population synthesis models. The model SBF spectra cover the range λλ1680–50 000 at moderately high resolution, all based on extensive empirical stellar libraries.
M A Beasley, I Martín-Navarro, M Montes, M Cerviño, A Vazdekis   +4 more
openaire   +4 more sources

Stellar haloes of disc galaxies at z~1

, 2013
Taking advantage of the ultra-deep near-infrared imaging obtained with the Hubble Space Telescope on the Hubble Ultra Deep Field, we detect and explore for the first time the properties of the stellar haloes of two Milky Way-like galaxies at z~1. We find
Abadi, Azzollini, Azzollini, Bakos, Bakos, Barker, Barro, Barro, Beckwith, Bekki, Bell, Bergvall, Bertin, Bouwens, Brook, Bullock, Carollo, Cooper, Courteau, de Jong, Eggen, Ferguson, Font, Gilbert, Gilbert, Helmi, Ibata, Ibata, Ignacio Trujillo, Irwin, Jablonka, Judit Bakos, Kalirai, Kroupa, Martínez-Delgado, Martínez-Delgado, Martínez-Delgado, McConnachie, McConnachie, McConnachie, Morrison, Mouhcine, Mouhcine, Mouhcine, Pohlen, Pérez-González, Radburn-Smith, Sackett, Salpeter, Samland, Searle, Shang, Starkenburg, Steinmetz, Sérsic, Tanaka, Thompson, Tissera, Vazdekis, Wu, Zackrisson, Zibetti, Zibetti   +62 more
core   +1 more source

The stellar ‘Snake’ – I. Whole structure and properties

Monthly Notices of the Royal Astronomical Society, 2022
ABSTRACT To complement our previous discovery of the young snake-like structure in the solar neighbourhood and reveal the structure’s full extent, we build two samples of stars within the Snake and its surrounding territory from Gaia Early Data Release 3 (EDR3).
Fan Wang, Haijun Tian, Dan Qiu, Qi Xu, Min Fang, Hao Tian, Li Di, Sarah A Bird, Jianrong Shi, Xiaoting Fu, Gaochao Liu, Sheng Cui, Yong Zhang   +12 more
openaire   +2 more sources

Reconstructing Intrinsic Stellar Noise with Stellar Atmospheric Parameters and Chromospheric Activity

The Astrophysical Journal Supplement Series
Accurately characterizing the intrinsic stellar photometric noise induced by stellar astrophysics, such as stellar activity, granulation, and oscillations, is of crucial importance for detecting transiting exoplanets.
Jinghua Zhang, Maosheng Xiang, Jie Yu, Jian Ge, Ji-Wei Xie, Hui Zhang, Yaguang Li, You Wu, Chun-Qian Li, Shaolan Bi, Hong-Liang Yan, Jian-Rong Shi   +11 more
doaj   +1 more source

Intracluster stellar population properties from N-body cosmological simulations -- I. Constraints at $z=0$

, 2003
We use a high resolution collisionless simulation of a Virgo--like cluster in a $\Lambda$CDM cosmology to determine the velocity and clustering properties of the diffuse stellar component in the intracluster region at the present epoch.
Arnaboldi, M., Capaccioli, M., Freeman, K. C., Gerhard, O., Ghigna, S., Governato, F., L., J. A. Aguerri, Napolitano, N. R., Pannella, M., Quinn, T., Stadel, J.   +10 more
core   +2 more sources

STELLAR AND CIRCUMSTELLAR PROPERTIES OF CLASS I PROTOSTARS [PDF]

The Astronomical Journal, 2009
42 pages, 10 figures; accepted by Astronomical ...
Prato, L., Lockhart, K. E., Johns-Krull, Christopher M., Rayner, John T.   +3 more
openaire   +2 more sources

Preferences of Pediatric Patients and Their Caregivers for Chemotherapy‐Induced Nausea and Vomiting Control Endpoints: A Mixed Methods Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Although not always achieved, complete chemotherapy‐induced nausea and vomiting (CINV) control is the conventional goal of CINV prophylaxis. In this two‐center, mixed‐methods study, we sought to understand the preferences of adolescent patients and family caregivers for CINV control endpoints.
Haley Newman, Tadi Hondonga, Alison Berry, Caitlin Elgarten, Jason Freedman, Katelyn Oranges, Sara McDonough, Caroline Diorio, L. Lee Dupuis   +8 more
wiley   +1 more source

New Theoretical Instability Regions, Period–Luminosity Relations, and Masses for Blue Large-amplitude Pulsators

The Astrophysical Journal
Blue large-amplitude pulsators (BLAPs) are a recently discovered group of hot pulsating stars whose evolutionary status remains uncertain. Their proposed progenitors are either ≃0.3 M _⊙ shell H-burning stars or ≃1.0 M _⊙ core He-burning stars, both ...
Susmita Das, Daniel Jadlovský, László Molnár   +2 more
doaj   +1 more source

Spatially resolved stellar-to-total dynamical mass relation

Astronomy & Astrophysics
Context. In our standard cosmological model, galaxy assembly is inherently linked to the hierarchical growth of dark matter halos, which provide the gravitational framework in which highly complex baryonic processes unfold.
Scholz-Díaz L., Gallazzi A. R., Zibetti S., Mattolini D.   +3 more
doaj   +1 more source

Revealing the Galaxy–Halo Connection through Machine Learning

The Astrophysical Journal, 2023
Understanding the connections between galaxy stellar mass, star formation rate, and dark matter halo mass represents a key goal of the theory of galaxy formation. Cosmological simulations that include hydrodynamics, physical treatments of star formation,
Ryan Hausen, Brant E. Robertson, Hanjue Zhu, Nickolay Y. Gnedin, Piero Madau, Evan E. Schneider, Bruno Villasenor, Nicole E. Drakos   +7 more
doaj   +1 more source