English
Related papers

Related papers: Star formation histories from multi-band photometr…

200 papers

We present results of a study aiming at shedding light on the specific advantages and limitations of methods to derive star formation histories (SFH) in galaxies using resolved stellar populations and using integrated light, respectively.…

Astrophysics · Physics 2007-05-23 Thomas Lilly , Uta Fritze-v. Alvensleben

Star formation happens in a clustered way which is why the star cluster population of a particular galaxy is closely related to the star formation history of this galaxy. From the probabilistic nature of a mass function follows that the…

Astrophysics · Physics 2009-06-23 Thomas Maschberger , Pavel Kroupa

Understanding the variability of galaxy star formation histories (SFHs) across a range of timescales provides insight into the underlying physical processes that regulate star formation within galaxies. We compile the SFHs of galaxies at…

Unless the nearby universe is subtly anomalous, it should contain a relatively normal selection of galaxies whose histories are representative of field galaxies in general throughout the Universe. We can therefore take advantage of our…

Astrophysics · Physics 2007-05-23 Eline Tolstoy

The scatter of the star-forming main sequence (SFMS) holds a wealth of information about how galaxies evolve. The timescales encoded in this scatter can provide valuable insight into the relative importance of the physical processes…

Astrophysics of Galaxies · Physics 2025-04-08 Jenny T. Wan , Sandro Tacchella , Francesco D'Eugenio , Benjamin D. Johnson , Arjen van der Wel

We develop a method for interpreting faint galaxy data which focuses on the integrated light radiated from the galaxy population as a whole. The emission history of the universe at ultraviolet, optical, and near-infrared wavelengths is…

Astrophysics · Physics 2009-10-30 Piero Madau , Lucia Pozzetti , Mark Dickinson

A large sample of spectroscopically confirmed galaxies at 1.4<z<3.7, with complementary imaging in the near- and mid-IR from the ground and from Hubble and Spitzer, is used to infer the average star formation histories (SFHs) of typical…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Naveen A. Reddy , Max Pettini , Charles C. Steidel , Alice E. Shapley , Dawn K. Erb , David R. Law

We present a new method to determine the star formation and metal enrichment histories of any resolved stellar system. This method is based on the fact that any observed star in a colour-magnitude diagram will have a certain probability of…

Astrophysics of Galaxies · Physics 2015-06-11 Emma E. Small , David Bersier , Maurizio Salaris

The prevalent paradigm of machine learning today is to use past observations to predict future ones. What if, however, we are interested in knowing the past given the present? This situation is indeed one that astronomers must contend with…

Astrophysics of Galaxies · Physics 2024-07-04 Sankalp Gilda , Antoine de Mathelin , Sabine Bellstedt , Guillaume Richard

We explore methods to improve the estimates of star formation rates and mean stellar population ages from broadband photometry of high redshift star-forming galaxies. We use synthetic spectral templates with a variety of simple parametric…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Seong-Kook Lee , Henry C. Ferguson , Rachel S. Somerville , Tommy Wiklind , Mauro Giavalisco

We present uniformly measured star formation histories (SFHs) of 40 Local Group dwarf galaxies based on color-magnitude diagram (CMD) analysis from archival Hubble Space Telescope imaging. We demonstrate that accurate SFHs can be recovered…

The star formation histories (SFHs) of galaxies provide valuable insights into galaxy evolution and stellar physics. Understanding the SFHs enables the study of chemical enrichment of galaxies, star formation triggered by interactions, and…

Astrophysics of Galaxies · Physics 2024-02-13 Yi Ren , Biwei Jiang , Yuxi Wang , Ming Yang , Zhiqiang Yan

To study the effect of supermassive black holes (SMBHs) on their host galaxies it is important to study the hosts when the SMBH is near its peak activity. A method to investigate the host galaxies of high luminosity quasars is to obtain…

Astrophysics of Galaxies · Physics 2014-12-22 Gregory Mosby , Christy Tremonti , Eric Hooper , Marsha Wolf , Andrew Sheinis , Joseph Richards

Observations of the early Universe (z > 4) with the James Webb Space Telescope reveal galaxy populations with a wide range of intrinsic luminosities and colors. Bursty star formation histories (SFHs), characterized by short-term…

Within the Local Universe galaxies can be studied in great detail star by star, and here we review the results of quantitative studies in nearby dwarf galaxies. The Color-Magnitude Diagram synthesis method is well established as the most…

Cosmology and Nongalactic Astrophysics · Physics 2010-01-15 E. Tolstoy , V. Hill , M. Tosi

We investigate the star formation histories (SFHs) of high redshift (3 <~ z <~ 5) star-forming galaxies selected based on their rest-frame ultraviolet (UV) colors in the CANDELS/GOODS-S field. By comparing the results from the…

Astrophysics of Galaxies · Physics 2014-03-26 Seong-Kook Lee , Henry C. Ferguson , Rachel S. Somerville , Mauro Giavalisco , Tommy Wiklind , Tomas Dahlen

The chemical abundances of Milky Way's satellites reflect their star formation histories (SFHs), yet, due to the difficulty of determining the ages of old stars, the SFHs of most satellites are poorly measured. Ongoing and upcoming surveys…

Physical parameters of galaxies (as luminosity, stellar mass, age) are often derived by means of the model templates which best fit their spectro-photometric data. We have performed a quantitative test aimed at exploring the ability of this…

Astrophysics · Physics 2010-11-11 Marcella Longhetti , Paolo Saracco , Arturo Mignano

Modern data empower observers to describe galaxies as the spatially and biographically complex objects they are. We illustrate this through case studies of four, $z\sim1.3$ systems based on deep, spatially resolved, 17-band + G102 + G141…

Star formation is arguably the most important physical process in the cosmos. It is a fundamental driver of galaxy evolution and the ultimate source of most of the energy emitted by galaxies. A correct interpretation of star formation rate…