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The Effect of Galaxy Interactions on Starbursts in Milky Way-Mass Galaxies in FIRE Simulations
Fei Li, Mubdi Rahman, Norman Murray +5
Simulations and observations suggest that galaxy interactions may enhance the star formation rate (SFR) in merging galaxies. One proposed mechanism is the torque exerted on the gas…
Statistical association between the candidate repeating FRB 20200320A and a galaxy group
Masoud Rafiei-Ravandi, Kendrick M. Smith, D. Michilli +17
We present results from angular cross-correlations between select samples of CHIME/FRB repeaters and galaxies in three photometric galaxy surveys, which have shown correlations wit…
An FRB Sent Me a DM: Constraining the Electron Column of the Milky Way Halo with Fast Radio Burst Dispersion Measures from CHIME/FRB
Amanda M. Cook, Mohit Bhardwaj, B. M. Gaensler +25
The CHIME/FRB project has detected hundreds of fast radio bursts (FRBs), providing an unparalleled population to probe statistically the foreground media that they illuminate. One…
Probing the CGM of Low-redshift Dwarf Galaxies Using FIRE Simulations
Fei Li, Mubdi Rahman, Norman Murray +7
Observations of UV metal absorption lines have provided insight into the structure and composition of the circumgalactic medium (CGM) around galaxies. We compare these observations…
Systematically Measuring Ultra Diffuse Galaxies (SMUDGes). I. Survey Description and First Results in the Coma Galaxy Cluster and Environs
Dennis Zaritsky, Richard Donnerstein, Arjun Dey +6
We present a homogeneous catalog of 275 large (effective radius 5.3 arcsec) ultra-diffuse galaxy (UDG) candidates lying within an 290 square degree region surro…
The star-forming complex LMC-N79 as a future rival to 30 Doradus
Bram B. Ochsendorf, Hans Zinnecker, Omnarayani Nayak +5
Within the early Universe, `extreme' star formation may have been the norm rather than the exception. Super Star Clusters (SSCs; 10 M) are thought t…
What sets the massive star formation rates and efficiencies of giant molecular clouds?
Bram B. Ochsendorf, Margaret Meixner, Julia Roman-Duval +2
Galactic star formation scaling relations show increased scatter from kpc to sub-kpc scales. Investigating this scatter may hold important clues to how the star formation process e…
AGN Outflow Shocks on Bonnor-Ebert Spheres
Zachary Dugan, Volker Gaibler, Rebekka Bieri +2
Feedback from Active Galactic Nuclei (AGN) and subsequent jet cocoons and outflow bubbles can have a significant impact on star formation in the host galaxy. To investigate feedbac…
Feeding cosmic star formation: Exploring high-redshift molecular gas with CO intensity mapping
Patrick C. Breysse, Mubdi Rahman
The study of molecular gas is crucial for understanding star formation, feedback, and the broader ecosystem of a galaxy as a whole. However, we have limited understanding of its ph…
On the Metallicity and Origin of the Smith High-Velocity Cloud
Andrew J. Fox, Nicolas Lehner, Felix J. Lockman +7
The Smith Cloud is a gaseous high-velocity cloud (HVC) in an advanced state of accretion, only 2.9 kpc below the Galactic plane and due to impact the disk in 27 Myr. It is unique a…
Exploring the SDSS Photometric Galaxies with Clustering Redshifts
Mubdi Rahman, Alexander J. Mendez, Brice Ménard +4
We apply clustering-based redshift inference to all extended sources from the Sloan Digital Sky Survey photometric catalogue, down to magnitude r = 22. We map the relationships bet…
Exploring the 2MASS Extended and Point Source Catalogs with Clustering Redshifts
Mubdi Rahman, Brice Ménard, Ryan Scranton
The Two-Micron All-Sky Survey (2MASS) has mapped out the low-redshift Universe down to mag. As its near-infrared photometry primarily probes the featureless Rayleigh-Je…
Clustering-based Redshift Estimation: Comparison to Spectroscopic Redshifts
Mubdi Rahman, Brice Ménard, Ryan Scranton +2
We investigate the potential and accuracy of clustering-based redshift estimation using the method proposed by Ménard et al. (2013). This technique enables the inference of redshif…
Wide Integral-Field Infrared Spectroscopy of the Bright [Fe II] Shell in the Young Supernova Remnant G11.2-0.3
Ho-Gyu Lee, Dae-Sik Moon, Bon-Chul Koo +9
We present the results of wide integral-field near-infrared (1.0-1.8 um) spectroscopic observations of the southeastern shell of the young core-collapse supernova remnant (SNR) G11…
OB Associations at the Upper End of the Milky Way Luminosity Function
Mubdi Rahman, Christopher D. Matzner, Dae-Sik Moon
The Milky Way's most luminous, young and massive (M > 10^4 Msun) star clusters and OB associations have largely evaded detection despite knowledge of their surrounding H II regions…
Milky Way Star Forming Complexes and the Turbulent Motion of the Galaxy's Molecular Gas
E. J. Lee, N. Murray, M. Rahman
We analyze Spitzer GLIMPSE, MSX, and WMAP images of the Milky Way to identify 8 micron and free-free sources in the Galaxy. Seventy-two of the eighty-eight WMAP sources have covera…
Spectroscopic Confirmation of the Dragonfish Association: The Galaxy's Most Luminosity OB Association
Mubdi Rahman, Dae-Sik Moon, Christopher D. Matzner
Young OB associations with masses greater than 10 M$_{\sun}$ have been inferred to exist in the Galaxy but have largely evaded detection. Recently, a candidate OB association h…
A Candidate for the Most Luminous OB Association in the Galaxy
Mubdi Rahman, Christopher Matzner, Dae-Sik Moon
The Milky Way harbors giant H II regions which may be powered by star complexes more luminous than any Galactic OB association known. Being across the disk of the Galaxy, however,…
Massive Star Forming Regions in the Galaxy using the Spitzer GLIMPSE Survey
Mubdi Rahman, Norman Murray
We examine the thirteen most luminous sources in the WMAP free-free map using the Spitzer GLIMPSE and MSX surveys to identify massive star formation regions, emitting one-third of…
Star Formation in Massive Clusters via the Wilkinson Microwave Anisotropy Probe and the Spitzer Glimpse Survey
N. W. Murray, M. Rahman
We use the WMAP maximum entropy method foreground emission map combined with previously determined distances to giant HII regions to measure the free-free flux at Earth and the fre…