Search Publications
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…
No evidence for a strong decrease of planetesimal accretion in old white dwarfs
Blouin, Simon; Xu, Siyi
A large fraction of white dwarfs are accreting or have recently accreted rocky material from their planetary systems, thereby 'polluting' their atmospheres with elements heavier than helium. In recent years, the quest for mechanisms that can deliver planetesimals to the immediate vicinity of their central white dwarfs has stimulated a flurry of mo…
The XXL survey. XLVI. Forward cosmological analysis of the C1 cluster sample
Umetsu, Keiichi; Gastaldello, Fabio; Sereno, Mauro +15 more
Context. We present the forward cosmological analysis of an XMM-selected sample of galaxy clusters out to a redshift of unity. We derive mass-observable relations in a self-consistent manner using the sample alone. Special care is given to the modelling of selection effects.
Aims: Following our previous 2018 study based on the dn/dz quantity …
The Sagittarius stream in Gaia Early Data Release 3 and the origin of the bifurcations
Antoja, T.; Ramos, P.; Arentsen, A. +6 more
Context. The Sagittarius dwarf spheroidal (Sgr) is a dissolving galaxy being tidally disrupted by the Milky Way (MW). Its stellar stream still poses serious modelling challenges, which hinders our ability to use it effectively as a prospective probe of the MW gravitational potential at large radii.
Aims: Our goal is to construct the largest a…