Search Publications
Missions
Journals
Publication Years
Three-dimensional Shape Explains Star Formation Mystery of California and Orion A
Kainulainen, Jouni; Rezaei Kh., Sara
The new Gaia data release (EDR3) with improved astrometry has opened a new era in studying our Milky Way in fine detail. We use Gaia EDR3 astrometry together with 2MASS and WISE photometry to study two of the most massive molecular clouds in the solar vicinity: Orion A and California. Despite having remarkable similarities in the plane of the sky …
PetroFit: A Python Package for Computing Petrosian Radii and Fitting Galaxy Light Profiles
Crawford, Steven M.; Hunt, Lucas; Tollerud, Erik +3 more
PetroFit is an open-source Python package based on Astropy and Photutils that can calculate Petrosian profiles and fit galaxy images. It offers end-to-end tools for making accurate photometric measurements, estimating morphological properties, and fitting 2D models to galaxy images. Petrosian metric radii can be used for model parameter estimation…
The bright extragalactic ALMA redshift survey (BEARS) I: redshifts of bright gravitationally lensed galaxies from the Herschel ATLAS
Berta, S.; Andreani, P.; Omont, A. +53 more
We present spectroscopic measurements for 71 galaxies associated with 62 of the brightest high-redshift submillimetre sources from the Southern fields of the Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS), while targeting 85 sources which resolved into 142. We have obtained robust redshift measurements for all sources using the 12-m …
Survey of Orion Disks with ALMA (SODA). I. Cloud-level demographics of 873 protoplanetary disks
van Dishoeck, E. F.; Portegies Zwart, S.; Hacar, A. +2 more
Context. Surveys of protoplanetary disks in nearby star-forming regions (SFRs) have provided important information on their demographics. However, due to their sample sizes, these surveys cannot be used to study how disk properties vary with the environment.
Aims: We conduct a survey of the unresolved millimeter continuum emission of 873 prot…
The Debiased Compositional Distribution of MITHNEOS: Global Match between the Near-Earth and Main-belt Asteroid Populations, and Excess of D-type Near-Earth Objects
Granvik, Mikael; Carry, Benoit; Marsset, Michaël +10 more
We report 491 new near-infrared spectroscopic measurements of 420 near-Earth objects (NEOs) collected on the NASA InfraRed Telescope Facility as part of the MIT-Hawaii NEO Spectroscopic Survey. These measurements were combined with previously published data from Binzel et al. and bias-corrected to derive the intrinsic compositional distribution of…
Chemical and stellar properties of star-forming dwarf galaxies
Tosi, Monica; Annibali, Francesca
Dwarf galaxies are the least massive, most abundant and most widely distributed type of galaxy. Hence, they are key to testing theories of galaxy and Universe evolution. Dwarf galaxies sufficiently close to have their gas and stellar components studied in detail are of particular interest, because their properties and evolution can be inferred wit…
A Census of the Circumstellar Disk Populations in the Sco-Cen Complex
Luhman, K. L.
I have used mid-infrared (IR) photometry from the Wide-field Infrared Survey Explorer (WISE) to perform a census of circumstellar disks among ~10,000 candidate members of the Sco-Cen complex that were recently identified with data from the Gaia mission. IR excesses are detected for more than 1200 of the WISE counterparts that are within the common…
Asteroid families: properties, recent advances, and future opportunities
Nesvorný, David; Novaković, Bojan; Spoto, Federica +1 more
Collisions are one of the key processes shaping planetary systems. Asteroid families are outcomes of such collision still identifiable across our solar system. The families provide a unique view of catastrophic disruption phenomena and have been in the focus of planetary scientists for more than a century. Most of them are located in the main belt…
Quantifying Feedback from Narrow Line Region Outflows in Nearby Active Galaxies. IV. The Effects of Different Density Estimates on the Ionized Gas Masses and Outflow Rates
Rafelski, Marc; Fischer, Travis C.; Collins, Nicholas R. +9 more
Active galactic nuclei (AGN) can launch outflows of ionized gas that may influence galaxy evolution, and quantifying their full impact requires spatially resolved measurements of the gas masses, velocities, and radial extents. We previously reported these quantities for the ionized narrow-line region outflows in six low-redshift AGN, where the gas…
After The Fall: Resolving the Molecular Gas in Post-starburst Galaxies
Bell, Eric F.; Zabludoff, Ann I.; Walter, Fabian +8 more
Post-starburst (PSB), or "E + A," galaxies represent a rapid transitional phase between major, gas-rich mergers and gas-poor, quiescent, early-type galaxies. Surprisingly, many PSBs have been shown to host a significant interstellar medium (ISM), despite theoretical predictions that the majority of the star-forming gas should be expelled in active…