Search Results - "Annual review of astronomy and astrophysics"

Intermediate-Mass Black Holes by Greene, Jenny E, Strader, Jay, Ho, Luis C

“…We describe ongoing searches for intermediate-mass black holes with M BH ≈ 10-10 5 M . We review a range of search mechanisms, both dynamical and those that…”
Get full text

The Assembly of the First Massive Black Holes by Inayoshi, Kohei, Visbal, Eli, Haiman, Zoltán

“…The existence of ∼10 9 M supermassive black holes (SMBHs) within the first billion years of the Universe has stimulated numerous ideas for the prompt formation…”
Get full text

Relativistic Jets from Active Galactic Nuclei by Blandford, Roger, Meier, David, Readhead, Anthony

“…The nuclei of most normal galaxies contain supermassive black holes, which can accrete gas through a disk and become active. These active galactic nuclei…”
Get full text

Star Clusters Across Cosmic Time by Krumholz, Mark R, McKee, Christopher F, Bland-Hawthorn, Joss

“…Star clusters stand at the intersection of much of modern astrophysics: the ISM, gravitational dynamics, stellar evolution, and cosmology. Here, we review…”
Get full text

The Faintest Dwarf Galaxies by Simon, Joshua D

“…The lowest luminosity ( L ) Milky Way satellite galaxies represent the extreme lower limit of the galaxy luminosity function. These ultra-faint dwarfs are the…”
Get full text

The Evolution of the Star-Forming Interstellar Medium Across Cosmic Time by Tacconi, Linda J, Genzel, Reinhard, Sternberg, Amiel

“…Over the past decade, increasingly robust estimates of the dense molecular gas content in galaxy populations between redshift z = 0 and the peak of cosmic…”
Get full text

The Connection Between Galaxies and Their Dark Matter Halos by Wechsler, Risa H, Tinker, Jeremy L

“…In our modern understanding of galaxy formation, every galaxy forms within a dark matter halo. The formation and growth of galaxies over time is connected to…”
Get full text

Streams, Substructures, and the Early History of the Milky Way by Helmi, Amina

“…The advent of the second data release of the Gaia mission, in combination with data from large spectroscopic surveys, is revolutionizing our understanding of…”
Get full text

Understanding Galaxy Evolution Through Emission Lines by Kewley, Lisa J, Nicholls, David C, Sutherland, Ralph S

“…We review the use of emission lines for understanding galaxy evolution, focusing on excitation source, metallicity, ionization parameter, ISM pressure, and…”
Get full text

Quasars and the Intergalactic Medium at Cosmic Dawn by Fan, Xiaohui, Bañados, Eduardo, Simcoe, Robert A

“…Quasars at cosmic dawn provide powerful probes of the formation and growth of the earliest supermassive black holes (SMBHs) in the Universe, their connections…”
Get full text

Fast Radio Bursts: An Extragalactic Enigma by Cordes, James M, Chatterjee, Shami

“…We summarize our understanding of millisecond radio bursts from an extragalactic population of sources. Fast radio bursts (FRBs) occur at an extraordinary…”
Get full text

Small-Scale Challenges to the ΛCDM Paradigm by Bullock, James S, Boylan-Kolchin, Michael

“…The dark energy plus cold dark matter (ΛCDM) cosmological model has been a demonstrably successful framework for predicting and explaining the large-scale…”
Get full text

Observations of Protoplanetary Disk Structures by Andrews, Sean M

“…The disks that orbit young stars are the essential conduits and reservoirs of material for star and planet formation. Their structures, meaning the spatial…”
Get full text

Wave Dark Matter by Hui, Lam

“…We review the physics and phenomenology of wave dark matter: a bosonic dark matter candidate lighter than about 30 eV. Such particles have a de Broglie…”
Get full text

Multiple Stellar Populations in Globular Clusters by Bastian, Nate, Lardo, Carmela

“…Globular clusters (GCs) exhibit star-to-star variations in specific elements (e.g., He, C, N, O, Na, Al) that bear the hallmark of high-temperature H-burning…”
Get full text

Tidal Disruption Events by Gezari, Suvi

“…The concept of stars being tidally ripped apart and consumed by a massive black hole (MBH) lurking in the center of a galaxy first captivated theorists in the…”
Get full text

Magnetars by Kaspi, Victoria M, Beloborodov, Andrei M

“…Magnetars are young and highly magnetized neutron stars that display a wide array of X-ray activity including short bursts, large outbursts, giant flares, and…”
Get full text

The Circumgalactic Medium by Tumlinson, Jason, Peeples, Molly S, Werk, Jessica K

“…The gas surrounding galaxies outside their disks or interstellar medium and inside their virial radii is known as the circumgalactic medium (CGM). In recent…”
Get full text

The Galaxy in Context: Structural, Kinematic, and Integrated Properties by Bland-Hawthorn, Joss, Gerhard, Ortwin

“…Our Galaxy, the Milky Way, is a benchmark for understanding disk galaxies. It is the only galaxy whose formation history can be studied using the full…”
Get full text

Obscured Active Galactic Nuclei by Hickox, Ryan C, Alexander, David M

“…Active galactic nuclei (AGN) are powered by the accretion of material onto a supermassive black hole (SMBH) and are among the most luminous objects in the…”
Get full text