681 citations · 11.9k across the 120 of their papers we have counts for
28 papers · 1 filter
Molecular Gas Properties and CO-to-H2 Conversion Factors in the Central Kiloparsec of NGC 3351
Yu-Hsuan Teng, Karin M. Sandstrom, Jiayi Sun +16
The CO-to-H conversion factor ($α_\rm{CO}$) is critical to studying molecular gas and star formation in galaxies. The value of $α_\rm{CO}$ has been found to vary within and bet…
PHANGS-MUSE: the HII region luminosity function of local star-forming galaxies
Francesco Santoro, Kathryn Kreckel, Francesco Belfiore +30
We use an unprecedented sample of about 23,000 HII regions detected at an average physical resolution of 67pc in the PHANGS-MUSE sample to study the extragalactic HII region Ha lum…
A tale of two DIGs: The relative role of HII regions and low-mass hot evolved stars in powering the diffuse ionised gas (DIG) in PHANGS-MUSE galaxies
Francesco Belfiore, Francesco Santoro, Brent Groves +17
We use integral field spectroscopy from the PHANGS-MUSE survey, which resolves the ionised interstellar medium at pc resolution in 19 nearby spiral galaxies, to study th…
Investigating variations in the dust emissivity index in the Andromeda galaxy
G. Athikkat-Eknath, S. A. Eales, M. W. L. Smith +3
Over the past decade, studies of dust in the Andromeda galaxy (M31) have shown radial variations in the dust emissivity index (). Understanding the astrophysical reasons behind…
Comparing the pre-SNe feedback and environmental pressures for 6000 HII regions across 19 nearby spiral galaxies
A. T. Barnes, S. C. O. Glover, K. Kreckel +28
The feedback from young stars (i.e. pre-supernova) is thought to play a crucial role in molecular cloud destruction. In this paper, we assess the feedback mechanisms acting within…
Bright, Relatively Isolated Star Clusters in PHANGS-HST Galaxies: Aperture Corrections, Quantitative Morphologies, and Comparison with Synthetic Stellar Population Models
Sinan Deger, Janice C. Lee, Bradley C. Whitmore +14
Using PHANGS-HST NUV-U-B-V-I imaging of 17 nearby spiral galaxies, we study samples of star clusters and stellar associations, visually selected to be bright and relatively isolate…
The Two-Dimensional Metallicity Distribution and Mixing Scales of Nearby Galaxies
Thomas G. Williams, Kathryn Kreckel, Francesco Belfiore +25
Understanding the spatial distribution of metals within galaxies allows us to study the processes of chemical enrichment and mixing in the interstellar medium (ISM). In this work,…
The PHANGS-MUSE survey -- Probing the chemo-dynamical evolution of disc galaxies
Eric Emsellem, Eva Schinnerer, Francesco Santoro +45
We present the PHANGS-MUSE survey, a programme using the MUSE IFS at the ESO VLT to map 19 massive nearby (D < 20 Mpc) star-forming disc galaxi…
The HASHTAG project: The First Submillimeter Images of the Andromeda Galaxy from the Ground
Matthew W. L. Smith, Stephen A. Eales, Thomas G. Williams +46
Observing nearby galaxies with submillimeter telescopes on the ground has two major challenges. First, the brightness is significantly reduced at long submillimeter wavelengths com…
Low-J CO Line Ratios From Single Dish CO Mapping Surveys and PHANGS-ALMA
Adam K. Leroy, Erik Rosolowsky, Antonio Usero +32
We measure the low-J CO line ratio R21=CO(2-1)/CO(1-0), R32=CO(3-2)/CO(2-1), and R31 = CO(3-2)/CO(1-0) using whole-disk CO maps of nearby galaxies. We draw CO(2-1) from PHANGS--ALM…
The impact of pre-supernova feedback and its dependence on environment
Anna F. Mcleod, Ahmad A. Ali, Mélanie Chevance +8
Integral field units enable resolved studies of a large number of star-forming regions across entire nearby galaxies, providing insight on the conversion of gas into stars and the…
Rotation Curves in z~1-2 Star-Forming Disks: Comparison of Dark Matter Fractions and Disk Properties for Different Fitting Methods
S. H. Price, T. T. Shimizu, R. Genzel +22
We present a follow-up analysis examining the dynamics and structures of 41 massive, large star-forming galaxies at z~0.67-2.45 using both ionized and molecular gas kinematics. We…
Stellar structures, molecular gas, and star formation across the PHANGS sample of nearby galaxies
M. Querejeta, E. Schinnerer, S. Meidt +32
We identify stellar structures in the PHANGS sample of 74 nearby galaxies and construct morphological masks of sub-galactic environments based on Spitzer 3.6 micron images. At the…
Star Cluster Classification in the PHANGS-HST Survey: Comparison between Human and Machine Learning Approaches
Bradley C. Whitmore, Janice C. Lee, Rupali Chandar +21
When completed, the PHANGS-HST project will provide a census of roughly 50,000 compact star clusters and associations, as well as human morphological classifications for roughly 20…
Frequency and nature of central molecular outflows in nearby star-forming disk galaxies
Sophia K. Stuber, Toshiki Saito, Eva Schinnerer +17
Central molecular outflows in spiral galaxies are assumed to modulate their host galaxy's star formation rate by removing gas from the inner region of the galaxy. Outflows consisti…
Dense molecular gas properties on 100 pc scales across the disc of NGC 3627
I. Bešlić, A. T. Barnes, F. Bigiel +29
It is still poorly constrained how the densest phase of the interstellar medium varies across galactic environment. A large observing time is required to recover significant emissi…
PHANGS-HST: New Methods for Star Cluster Identification in Nearby Galaxies
David A. Thilker, Bradley C. Whitmore, Janice C. Lee +14
We present an innovative and widely applicable approach for the detection and classification of stellar clusters, developed for the PHANGS-HST Treasury Program, an -to- ban…
The centres of M83 and the Milky Way: opposite extremes of a common star formation cycle
Daniel Callanan, Steven N. Longmore, J. M. Diederik Kruijssen +8
In the centres of the Milky Way and M83, the global environmental properties thought to control star formation are very similar. However, M83's nuclear star formation rate (SFR), a…
PHANGS-ALMA: Arcsecond CO(2-1) Imaging of Nearby Star-Forming Galaxies
Adam K. Leroy, Eva Schinnerer, Annie Hughes +69
We present PHANGS-ALMA, the first survey to map CO J=2-1 line emission at ~1" ~ 100pc spatial resolution from a representative sample of 90 nearby (d<~20 Mpc) galaxies that lie on…
PHANGS-ALMA Data Processing and Pipeline
Adam K. Leroy, Annie Hughes, Daizhong Liu +65
We describe the processing of the PHANGS-ALMA survey and present the PHANGS-ALMA pipeline, a public software package that processes calibrated interferometric and total power data…
A lack of constraints on the cold opaque HI mass: HI spectra in M31 and M33 prefer multi-component models over a single cold opaque component
Eric W. Koch, Erik W. Rosolowsky, Adam K. Leroy +9
Previous work has argued that atomic gas mass estimates of galaxies from 21 cm HI emission are systematically low due to a cold opaque atomic gas component. If true, this opaque co…
Star formation scaling relations at ~100 pc from PHANGS: Impact of completeness and spatial scale
I. Pessa, E. Schinnerer, F. Belfiore +31
Aims: The complexity of star formation at the physical scale of molecular clouds is not yet fully understood. We investigate the mechanisms regulating the formation of stars in dif…
The organization of cloud-scale gas density structure: high resolution CO vs. 3.6 m brightness contrasts in nearby galaxies
Sharon E. Meidt, Adam K. Leroy, Miguel Querejeta +29
In this paper we examine the factors that shape the distribution of molecular gas surface densities on the 150 pc scale across 67 morphologically diverse star-forming galaxies in t…
New Constraints on the CO(2-1)/(1-0) Line Ratio Across Nearby Disc Galaxies
J. S. den Brok, D. Chatzigiannakis, F. Bigiel +18
Both the CO(2-1) and CO(1-0) lines are used to trace the mass of molecular gas in galaxies. Translating the molecular gas mass estimates between studies using different lines requi…