English
Related papers

Related papers: Ground- and Space-Based Dust Observations of VV 19…

200 papers

Measurements of the star formation activity on cloud scales are fundamental to uncovering the physics of the molecular cloud, star formation, and stellar feedback cycle in galaxies. Infrared (IR) emission from small dust grains and…

We present results from a dual narrow-band imaging survey targeting the CL1604 supercluster at z = 0.9 using the Subaru Telescope. By combining the NB921 filter on HSC and the NB1244 filter on SWIMS, we can detect redshifted H$\alpha$ and…

Using deep narrow-band and broad-band imaging, we identify 401 z~0.40 and 249 z~0.49 H-alpha line-emitting galaxies in the Subaru Deep Field. Compared to other H-alpha surveys at similar redshifts, our samples are unique since they probe…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 Chun Ly , Matthew A. Malkan , Nobunari Kashikawa , Kazuaki Ota , Kazuhiro Shimasaku , Masanori Iye , Thayne Currie

We find a tight correlation between the dust extinction, traced by the Balmer Decrement (BD$=$H$\alpha$/H$\beta$), the CO(1-0) line luminosity (L$_{CO}$) and total molecular gas mass (M$_{H2}$) in a sample of $222$ local star-forming…

Astrophysics of Galaxies · Physics 2019-05-15 Alice Concas , Paola Popesso

We investigate the dust attenuation in both stellar populations and ionized gas in kpc-scale regions in nearby galaxies, using integral field spectroscopy data from MaNGA MPL-9. We identify star-forming (HII) and diffuse ionized gas (DIG)…

Following from our recent work, we present a detailed analysis of star-formation and interstellar medium (ISM) scaling relations, done on a representative sample of nearby galaxies. H$\alpha$ images are analysed in order to derive the…

Astrophysics of Galaxies · Physics 2024-01-12 Bogdan A. Pastrav

We use medium resolution JWST/NIRSpec observations from the Cosmic Evolution Early Release Science (CEERS) Survey to place the first constraints on dust attenuation and star formation based on the Paschen lines for a sizable sample of 63…

Astrophysics of Galaxies · Physics 2023-05-17 Naveen A. Reddy , Michael W. Topping , Ryan L. Sanders , Alice E. Shapley , Gabriel Brammer

Using a sample of dwarf irregular galaxies selected from the ALFALFA blind HI-survey and observed using the VIMOS IFU, we investigate the relationship between H$\alpha$ emission and Balmer optical depth ($\tau_{\text{b}}$). We find a…

We introduce a new approach to quantifying dust in galaxies by combining information from the Balmer decrement (BD) and the dust mass ($M_d$). While there is no explicit correlation between these two properties, they jointly probe different…

Astrophysics of Galaxies · Physics 2025-05-28 B. Farley , U. T. Ahmed , A. M. Hopkins , M. Cowley , A. Battisti , S. Casura , Y. Gordon , B. W. Holwerda , S. Phillipps , C. Robertson , T. Zafar

The dust attenuation for a sample of $\sim$10000 local ($z\lesssim0.1$) star forming galaxies is constrained as a function of their physical properties. We utilize aperture-matched multi-wavelength data available from the Galaxy Evolution…

Astrophysics of Galaxies · Physics 2016-02-17 A. J. Battisti , D. Calzetti , R. -R. Chary

Dust attenuation strongly affects the observed spectral energy distributions of galaxies, introducing significant uncertainties in the derivation of key physical properties such as star formation rates, stellar masses, and metallicities.…

Isolated star-forming galaxies require inflows of fresh gas from the surrounding medium to sustain episodes of star formation over time. However, there are very few direct detections of accretion onto external galaxies. Studies in…

Astrophysics of Galaxies · Physics 2026-04-08 Meghna Sitaram , Hui Li , Yong Zheng , Greg L. Bryan , Mary Putman , Aaron Smith , Rahul Kannan

We present results on the dust attenuation curve of z~2 galaxies using early observations from the MOSFIRE Deep Evolution Field (MOSDEF) survey. Our sample consists of 224 star-forming galaxies with nebular spectroscopic redshifts in the…

We explore the possibility and practical limitations of using a three-line approach to measure both the slope and normalization of the dust attenuation law in individual galaxies. To do this, we focus on a sample of eleven galaxies with…

Astrophysics of Galaxies · Physics 2022-04-06 Moire K. M. Prescott , Kristian M. Finlator , Nikko J. Cleri , Jonathan R. Trump , Casey Papovich

JWST spectroscopy has discovered a population of $z \gtrsim 3.5$ galaxies with broad Balmer emission lines, and narrow forbidden lines, that are consistent with hosting active galactic nuclei (AGN). Many of these systems, now known as…

Dust attenuations observed by stars and ionized gas are not necessarily the same. The lack of observational constraints on the nebular dust attenuation curve leaves a large uncertainty when correcting nebular dust attenuation with stellar…

Astrophysics of Galaxies · Physics 2024-11-18 Zesen Lin , Renbin Yan

We investigate the effects of dust on Large Magellanic Cloud (LMC) HII region spectral energy distributions using arcminute-resolution far-ultraviolet (FUV), H-alpha, far-infrared (FIR), and radio images. Widely-used indicators of the…

Astrophysics · Physics 2009-11-07 Eric F. Bell , Karl D. Gordon , Robert C. Kennicutt , Dennis Zaritsky

We present VLT/VIMOS IFU observations of an occulting galaxy pair previously discovered in HST observations. The foreground galaxy is a low-inclination spiral disk, which causes clear attenuation features seen against the bright bulge and…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 B. W. Holwerda , T. Boker , J. J. Dalcanton , W. C. Keel , R. S. de Jong

We combined the spectroscopic information from the 3D-HST survey with \textit{Herschel} data to characterize the H$\alpha$ dust attenuation properties of a sample of 79 main sequence star-forming galaxies at $z \sim 1$ in the GOODS-S field.…