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Emission in the ultraviolet continuum is a salient signature of the hot, massive and consequently short-lived, stellar population that traces recent or ongoing star formation. With the aim of mapping star forming regions and morphologically…

Small amounts of star formation in elliptical galaxies are suggested by several results: surprisingly young ages from optical line indices, cooling X-ray gas, and mid-IR dust emission. Such star formation has previously been difficult to…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 H. Alyson Ford , Joel N. Bregman

We present measurements of the surface density of star formation, the star-forming clump luminosity function, and the clump size distribution function, for the lensed galaxy SGAS J111020.0+645950.8 at a redshift of z=2.481. The physical…

An accurate estimation of the star formation-related properties of galaxies is crucial for understanding the evolution of galaxies. In galaxies, ultraviolet (UV) light emitted by recently formed massive stars is attenuated by dust, which is…

Astrophysics of Galaxies · Physics 2015-06-11 A. Sakurai , T. T. Takeuchi , F. -T. Yuan , V. Buat , D. Burgarella

Compact star-forming clumps observed in distant galaxies are often suggested to play a crucial role in galaxy assembly. In this paper, we use a novel approach of applying finite resolution deconvolution on ground-based images of the COSMOS…

Astrophysics of Galaxies · Physics 2022-01-12 Visal Sok , Adam Muzzin , Pascale Jablonka , Z. Cemile Marsan , Vivian Tan , Leo Alcorn , Danilo Marchesini , Mauro Stefanon

(abridged) Using a complete sample of ~300 star-forming galaxies within 11 Mpc, we evaluate the consistency between star formation rates (SFRs) inferred from the far ultraviolet (FUV) non-ionizing continuum and H-alpha nebular emission,…

We have used optical observations of resolved stars from the Panchromatic Hubble Andromeda Treasury (PHAT) to measure the recent (< 500 Myr) star formation histories (SFHs) of 33 FUV-bright regions in M31. The region areas ranged from…

The structure formation of the dense interstellar material and the fragmentation of clumps into cores is a fundamental step to understand how stars and stellar clusters form. We aim to establish a statistical view of clump fragmentation at…

Astrophysics of Galaxies · Physics 2019-10-30 Yuxin Lin , Timea Csengeri , Friedrich Wyrowski , James S. Urquhart , Frederic Schuller , Axel Weiss , Karl M. Menten

Most low-mass stars form in stellar clusters that also contain massive stars, which are sources of far-ultraviolet (FUV) radiation. Theoretical models predict that this FUV radiation produces photo-dissociation regions (PDRs) on the…

Astrophysics of Galaxies · Physics 2024-03-04 Olivier Berné , Emilie Habart , Els Peeters , Ilane Schroetter , Amélie Canin , Ameek Sidhu , Ryan Chown , Emeric Bron , Thomas J. Haworth , Pamela Klaassen , Boris Trahin , Dries Van De Putte , Felipe Alarcón , Marion Zannese , Alain Abergel , Edwin A. Bergin , Jeronimo Bernard-Salas , Christiaan Boersma , Jan Cami , Sara Cuadrado , Emmanuel Dartois , Daniel Dicken , Meriem Elyajouri , Asunción Fuente , Javier R. Goicoechea , Karl D. Gordon , Lina Issa , Christine Joblin , Olga Kannavou , Baria Khan , Ozan Lacinbala , David Languignon , Romane Le Gal , Alexandros Maragkoudakis , Raphael Meshaka , Yoko Okada , Takashi Onaka , Sofia Pasquini , Marc W. Pound , Massimo Robberto , Markus Röllig , Bethany Schefter , Thiébaut Schirmer , Thomas Simmer , Benoit Tabone , Alexander G. G. M. Tielens , Sílvia Vicente , Mark G. Wolfire , Isabel Aleman , Louis Allamandola , Rebecca Auchettl , Giuseppe Antonio Baratta , Clément Baruteau , Salma Bejaoui , Partha P. Bera , John H. Black , Francois Boulanger , Jordy Bouwman , Bernhard Brandl , Philippe Brechignac , Sandra Brünken , Mridusmita Buragohain , Andrew Burkhardt , Alessandra Candian , Stéphanie Cazaux , Jose Cernicharo , Marin Chabot , Shubhadip Chakraborty , Jason Champion , Sean W. J. Colgan , Ilsa R. Cooke , Audrey Coutens , Nick L. J. Cox , Karine Demyk , Jennifer Donovan Meyer , Cécile Engrand , Sacha Foschino , Pedro García-Lario , Lisseth Gavilan , Maryvonne Gerin , Marie Godard , Carl A. Gottlieb , Pierre Guillard , Antoine Gusdorf , Patrick Hartigan , Jinhua He , Eric Herbst , Liv Hornekaer , Cornelia Jäger , Eduardo Janot-Pacheco , Michael Kaufman , Francisca Kemper , Sarah Kendrew , Maria S. Kirsanova , Collin Knight , Sun Kwok , Álvaro Labiano , Thomas S. -Y. Lai , Timothy J. Lee , Bertrand Lefloch , Franck Le Petit , Aigen Li , Hendrik Linz , Cameron J. Mackie , Suzanne C. Madden , Joëlle Mascetti , Brett A. McGuire , Pablo Merino , Elisabetta R. Micelotta , Jon A. Morse , Giacomo Mulas , Naslim Neelamkodan , Ryou Ohsawa , Roberta Paladini , Maria Elisabetta Palumbo , Amit Pathak , Yvonne J. Pendleton , Annemieke Petrignani , Thomas Pino , Elena Puga , Naseem Rangwala , Mathias Rapacioli , Alessandra Ricca , Julia Roman-Duval , Evelyne Roueff , Gaël Rouillé , Farid Salama , Dinalva A. Sales , Karin Sandstrom , Peter Sarre , Ella Sciamma-O'Brien , Kris Sellgren , Matthew J. Shannon , Adrien Simonnin , Sachindev S. Shenoy , David Teyssier , Richard D. Thomas , Aditya Togi , Laurent Verstraete , Adolf N. Witt , Alwyn Wootten , Nathalie Ysard , Henning Zettergren , Yong Zhang , Ziwei E. Zhang , Junfeng Zhen

Massive clumps tend to fragment into clusters of cores and condensations, some of which form high-mass stars. In this work, we study the structure of massive clumps at different scales, analyze the fragmentation process, and investigate the…

This is a summary of arguments in favor of observing high-redshift star formation in the UV as presented at the Ringberg meeting in September 2000. The most rapidly star-forming galaxies are very dusty, easier to detect at 850um than in the…

Astrophysics · Physics 2007-05-23 K. L. Adelberger

Stephan's Quintet (SQ), discovered more than 100 years ago, is the most famous and well studied compact galaxy group. It has been observed in almost all wavebands, with the most advanced instruments including Spitzer, GALEX, HST, Chandra,…

Astrophysics · Physics 2007-05-23 C. Kevin Xu

The interactions between the Magellanic Clouds significantly affect the shape and distribution of the young stellar population, particularly in the periphery of the Small Magellanic Cloud (SMC). We present the first far-UV (FUV) map of the…

Astrophysics of Galaxies · Physics 2024-07-09 Sipra Hota , Annapurni Subramaniam , S. R. Dhanush , Maria-Rosa L. Cioni , Smitha Subramanian

The Star Formation in Nearby Clouds (SFiNCs) project is aimed at providing detailed study of the young stellar populations and star cluster formation in nearby 22 star forming regions (SFRs) for comparison with our earlier MYStIX survey of…

Despite rapidly growing disk observations, it remains a mystery what primordial dust aggregates look like and what the physical and chemical properties of their constituent grains (monomers) are in young planet-forming disks. Confrontation…

Earth and Planetary Astrophysics · Physics 2023-03-01 Ryo Tazaki , Christian Ginski , Carsten Dominik

We present an investigation of clumpy galaxies in the Hubble Ultra Deep Field at 0.5 $\leq z \leq$ 1.5 in the rest-frame far-ultraviolet (FUV) using HST WFC3 broadband imaging in F225W, F275W, and F336W. An analysis of 1,404 galaxies yields…

The stellar, gaseous and young stellar disks in the LITTLE THINGS sample of nearby dIrrs are fitted with functions to search for correlations between the parameters. We find that the HI radial profiles are generally flatter in the center…

We present optical morphologies obtained from deep HST and ground-based images for galaxies selected from the first sub-millimeter survey of the distant Universe. Our sample comprises galaxies detected in deep 850-micron continuum maps of…

Astrophysics · Physics 2015-06-24 Ian Smail , R. J. Ivison , A. W. Blain , J. -P. Kneib

Interacting galaxies are known to have higher global rates of star formation on average than normal galaxies, relative to their stellar masses. Using UV and IR photometry combined with new and published H-alpha images, we have compared the…

Astrophysics of Galaxies · Physics 2016-03-09 Beverly J. Smith , Javier Zaragoza-Cardiel , Curtis Struck , Susan Olmsted , Keith Jones

We present the first results on the spatial distribution of star formation in 454 star-forming galaxies at $4.8<z<6.5$ using H-Alpha emission-line maps and F444W imaging tracing the stellar continuum from JWST FRESCO NIRCam Slitless…

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