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In preparation for observations with the $\textit{James Webb Space Telescope}$ ($\textit{JWST}$), we have identified new members of the nearby, young M dwarf sample and compiled an up to date list of these stars. Here we summarize our…

Solar and Stellar Astrophysics · Physics 2015-12-02 Joshua E. Schlieder , Charles A. Beichman , Michael R. Meyer , Thomas Greene

We present the results of our search for highly variable active galactic nuclei (AGNs) the X-ray flux from which changed by more than an order of magnitude during the SRG/eROSITA all-sky survey. Using the eROSITA data obtained in the period…

High Energy Astrophysical Phenomena · Physics 2023-09-21 Pavel Medvedev , Marat Gilfanov , Sergey Sazonov , Rashid Sunyaev , Georgii Khorunzhev

The study of the content, distribution and kinematics of interstellar gas is a key to understand the origin and maintenance of both starburst and nuclear (AGN) activity in galaxies. The processes involved in AGN fueling encompass a wide…

Astrophysics · Physics 2009-11-13 S. Garcia-Burillo , F. Combes , A. Usero , J. Gracia-Carpio

The search for signs of life in the Universe has entered a new phase with the advent of the James Webb Space Telescope (JWST). Detecting biosignature gases via exoplanet atmosphere transmission spectroscopy is in principle within JWST's…

Earth and Planetary Astrophysics · Physics 2025-09-24 Sara Seager , Luis Welbanks , Lucas Ellerbroek , William Bains , Janusz J. Petkowski

We present ECOology for Galaxies using ALMA archive and Legacy surveys (ECOGAL), an ALMA data mining project. Using the footprints of the James Webb Space Telescope (JWST) and the Hubble Space Telescope (HST), we query and uniformly…

Buried active galactic nuclei and obscured young stellar clusters pose significant challenges to traditional optical diagnostic diagrams. Therefore, developing new tools to trace the excitation sources across the spectrum is a necessary…

We advocate for a large scale imaging survey of nearby young moving groups and star-forming regions to directly detect exoplanets over an unexplored range of masses, ages and orbits. Discovered objects will be identified early enough in…

We exploit James Webb Space Telescope (JWST) NIRCam observations from the GLASS-JWST-Early Release Science program to investigate galaxy stellar masses at z>7. We first show that JWST observations reduce the uncertainties on the stellar…

We have compiled a large sample of low-redshift active galactic nuclei (AGN) identified via their emission line characteristics from the spectroscopic data of the Sloan Digital Sky Survey. Since emission lines are often contaminated by…

The James Webb Space Telescope (JWST) observations have been demonstrated to be efficient in detecting globular clusters' (GCs) multiple stellar populations in the low mass regime of M dwarfs. We present an overview, and first results, of…

Active Galactic Nuclei (AGN) are ideal sources for multi-wavelength studies as their emission can cover almost 20 orders of magnitude in frequency from the radio to the gamma-ray band. After reviewing their basic properties, I will assess…

Astrophysics · Physics 2007-05-23 Paolo Padovani

We aim to study the effect of environment on the presence and fuelling of Active Galactic Nuclei (AGN) in massive galaxy clusters. We explore the use of different AGN detection techniques with the goal of selecting AGN across a broad range…

Astrophysics of Galaxies · Physics 2015-06-05 Alison J. Klesman , Vicki L. Sarajedini

Active Galactic Nuclei (hereafter AGN) produce powerful outflows which offer excellent conditions for efficient particle acceleration in internal and external shocks, turbulence, and magnetic reconnection events. The jets as well as…

One of the primary goals for the upcoming James Webb Space Telescope (JWST) is to observe the first galaxies. Predictions for planned and proposed surveys have typically focused on average galaxy counts, assuming a random distribution of…

Astrophysics of Galaxies · Physics 2021-12-15 Charles L. Steinhardt , Christian Kragh Jespersen , Nora B. Linzer

Local low metallicity galaxies with signatures of possible accretion activity are ideal laboratories in which to search for the lowest mass black holes and study their impact on the host galaxy. Here we present the first JWST NIRSpec IFS…

Understanding the co-evolution of galaxies and active galactic nuclei (AGN) requires accurate modeling of dust-obscured systems. Recent surveys using the Mid Infrared Instrument (MIRI) onboard the James Webb Space Telescope (JWST) have…

The James Webb Space Telescope (JWST) is a large, infrared space telescope that has recently started its science program which will enable breakthroughs in astrophysics and planetary science. Notably, JWST will provide the very first…

Instrumentation and Methods for Astrophysics · Physics 2023-05-31 Michael W. McElwain , Lee D. Feinberg , Marshall D. Perrin , Mark Clampin , C. Matt Mountain , Matthew D. Lallo , Charles-Philippe Lajoie , Randy A. Kimble , Charles W. Bowers , Christopher C. Stark , D. Scott Acton , Ken Aiello , Charles Atkinson , Beth Barinek , Allison Barto , Scott Basinger , Tracy Beck , Matthew D. Bergkoetter , Marcel Bluth , Rene A. Boucarut , Gregory R. Brady , Keira J. Brooks , Bob Brown , John Byard , Larkin Carey , Maria Carrasquilla , Sid Celeste , Dan Chae , David Chaney , Pierre Chayer , Taylor Chonis , Lester Cohen , Helen J. Cole , Thomas M. Comeau , Matthew Coon , Eric Coppock , Laura Coyle , Rick Davis , Bruce H. Dean , Kenneth J. Dziak , Michael Eisenhower , Nicolas Flagey , Randy Franck , Benjamin Gallagher , Larry Gilman , Tiffany Glassman , Gary Golnik , Joseph J. Green , John Grieco , Shari Haase , Theodore J. Hadjimichael , John G. Hagopian , Walter G. Hahn , George F. Hartig , Keith A. Havey , William L. Hayden , Robert Hellekson , Brian Hicks , Sherie T. Holfeltz , Joseph M. Howard , Jesse A. Huguet , Brian Jahne , Leslie A. Johnson , John D. Johnston , Alden S. Jurling , Jeffrey R. Kegley , Scott Kennard , Ritva A. Keski-Kuha , J. Scott Knight , Bernard A. Kulp , Joshua S. Levi , Marie B. Levine , Paul Lightsey , Robert A. Luetgens , John C. Mather , Gary W. Matthews , Andrew G. McKay , Kimberly I. Mehalick , Marcio Meléndez , Ted Messer , Gary E. Mosier , Jess Murphy , Edmund P. Nelan , Malcolm B. Niedner , Darin M. Noël , Catherine M. Ohara , Raymond G. Ohl , Eugene Olczak , Shannon B. Osborne , Sang Park , Kevin Patton , Charles Perrygo , Laurent Pueyo , Lisbeth Quesnel , Dale Ranck , David C. Redding , Michael W. Regan , Paul Reynolds , Rich Rifelli , Jane R. Rigby , Derek Sabatke , Babak N. Saif , Thomas R. Scorse , Byoung-Joon Seo , Fang Shi , Norbert Sigrist , Koby Smith , J. Scott Smith , Erin C. Smith , Sangmo Tony Sohn , John Spina , H. Philip Stahl , Randal Telfer , Todd Terlecki , Scott C. Texter , David Van Buren , Julie M. Van Campen , Begoña Vila , Mark F. Voyton , Mark Waldman , Chanda B. Walker , Nick Weiser , Conrad Wells , Garrett West , Tony L. Whitman , Eric Wick , Erin Wolf , Greg Young , Thomas P. Zielinski

The James Webb Space Telescope (JWST) will observe several stars for long cumulative durations while pursuing exoplanets as primary science targets for both Guaranteed Time Observations (GTO) and very likely General Observer (GO) programs.…

Instrumentation and Methods for Astrophysics · Physics 2019-11-06 B. W. Holwerda , Jonathan Fraine , Nelly Mouawad , Joanna S. Bridge

The James Webb Space Telescope will enable astronomers to obtain exoplanet spectra of unprecedented precision. Especially the MIRI instrument may shed light on the nature of the cloud particles obscuring planetary transmission spectra in…

Earth and Planetary Astrophysics · Physics 2017-03-22 Paul Mollière , Roy van Boekel , Jeroen Bouwman , Thomas Henning , Pierre-Olivier Lagage , Michiel Min

Variability studies hold information on otherwise unresolvable regions in Active Galactic Nuclei (AGN). Population studies of large samples likewise have been very productive for our understanding of AGN. These two themes are coming…

High Energy Astrophysical Phenomena · Physics 2016-05-31 Andy Lawrence