Astrophysics Seminar/Journal Club

Meeting Time and Format

During Fall and Spring terms, the Astrophysics Seminar/Journal Club meets

  • Wednesdays and Fridays from 2:00–3:00 p.m. in 200 Gallalee Hall

Anyone in the department may attend.

On Wednesday’s we participate in the live broadcast of colloquium talks hosted by NASA/AURA’s Space Telescope Science Institute. The schedule for the talks is available on the Space Telescope Science Institute website.

The Friday meeting consists of two segments:

  • 20-minute talk (+10 minute discussion)
  • article summary and discussion (5-10 minutes)

Volunteering for Article Summaries

Please send your articles to Dean Townsley and Preethi Nair.

Please propose articles that are fairly recent (within a few months or so), are of interest to you, and you feel you can digest and summarize well. Check out the list of previously presented articles.

Where to Find Articles

Topics for Spring 2024

Date Talk (Speaker, Article) Summary (Speaker, Article)
1/12 Organize Schedule

Sam Boos

1/19 Praphull Kumar

“Evolution of double oxygen-neon white dwarf merger remnant” Wu et al. (2023MNRAS.525.6295W)

Jacob Morgan

“The Halo21 Absorption Modeling Challenge: Lessons From “Observing” Synthetic Circumgalactic Absorption Spectra” Hafen et al. (arXiv:2305.01842)

1/26 Anna Parul

“Data-driven Dynamics with Orbital Torus Imaging: A Flexible Model of the Vertical Phase Space of the Galaxy” Price-Whelan et al. (arXiv:2401.07903)

RileyAnne Sharpe

“First Detection of an Overmassive Black Hole Galaxy UHZ1: Evidence for Heavy Black Hole Seed Formation from Direct Collapse” Natarajan et al. (2024ApJ…960L…1N)

2/2 Mustafa Muhibulla

“HyperSoft X-ray Sources: A Novel Species of Extremely Faint X-ray Emitters” (original work)

Peter Gwartney

“The Frequency and Sizes of Inner Bars and Nuclear Rings in Barred Galaxies and Their Dependence on Galaxy Properties” Erwin (doi:10.1093/mnras/stad3944)

Mason Footh

“Discovery of a Planar Black Hole Mass Scaling Relation for Spiral Galaxies” Davis & Jin (2023ApJ…956L..22D)

2/9 RileyAnne Sharpe

“The spectra of IceCube Neutrino (SIN) candidate sources” 4-paper series: 2021MNRAS.504.3338P, 2022MNRAS.510.2671P, 2023MNRAS.521.2270P, 2023MNRAS.526..661K

Anna Parul

“On the metal-poor edge of the Milky Way “thin disc”” Fernández-Alvar et al. (arXiv:2402.02943)

Ava Ghadimi

“Long-term study of the 2020 magnetar-like outburst of the young pulsar PSRJ1846-0258 in Kes 75” Sathyaprakash et al. (arXiv:2401.08010)

2/16 Ved Iyer

“The NANOGrav 15 yr Data Set: Evidence for a Gravitational-wave Background” The NANOGrav Collaboration (2023ApJ…951L…8A)

Jacob Morgan

“The physical origins of gas in the circumgalactic medium using observationally-motivated TNG50 mocks” Weng et al. (2024MNRAS.527.3494W)

Elizabeth Warrick

“Citizen Science for IceCube: Name that Neutrino” Abbasi et al. (arXiv:2401.11994)


2/23 Sricharan Balaji

“The baroclinic instability in the context of layered accretion. Self-sustained vortices and their magnetic stability in local compressible unstratified models of protoplanetary disks” Lyra & Klahr (2011A&A…527A.138L)

Mustafa Muhibulla

“X-ray detection of a nova in the fireball phase” König et al. (2022Natur.605..248K)

Ved Iyer

“Implications of pulsar timing array observations for LISA detections of massive black hole binaries” Steinle et al. (2023MNRAS.525.2851S)

3/1 Sanchari Kundu

“VERITAS Discovery of Very High Energy Gamma-Ray Emission from S3 1227+25 and Multiwavelength Observations” The VERITAS Collaboration et al. (2023ApJ…950..152A)

Mason Footh

“The Relation Between AGN and Host Galaxy Properties: I. Obscured AGN reside in disturbed hosts at 0<z<4” Bonavetura et al. (arXiv:2401.07863)

Sam Boos

“Emission lines due to ionizing radiation from a compact object in the remnant of Supernova 1987A” Fransson et al. (2024 Science, 383, 898)

3/8 Lucas Bloom

“Search for Galactic core-collapse supernovae in a decade of data taken with the IceCube Neutrino Observatory” IceCube Collaboration (2024ApJ…961…84A)

Annelia Anderson

“Computer analysis of some ancient Chinese sunrise eclipse records to determine the Earth’s rotation rate” Pang et al. (1988VA…..31..833P)

3/15 spring break – no meeting
3/22 Matthew Marsee

“Search for neutrino emission from the Cygnus Bubble based on LHAASO γ-ray observations” Li et al. (arXiv:2402.17352)

Nethra Rajavel

“Constraining Supernova Ia Progenitors by Their Locations in Host Galactic Discs” Hakobyan et al. (2023ARep…67S.164H)

Celly Jimenez

“A population of faint, old, and massive quiescent galaxies at 3 <z <4 revealed by JWST NIRSpec Spectroscopy” Nanayakkara et al. (2024NatSR..14.3724N)

3/29 Linn Eriksson (Stonybrook and Flatiron/CCA)

“Towards three-dimensional simulations of planetesimal formation at planetary gap edges”

Lucas Bloom

“General Circulation Model Constraints on the Detectability of the CO2-CH4 Biosignature Pair on TRAPPIST-1e with JWST” Rotman et al (2023ApJ…942L…4R)

Ryker von Klar

“The Local Bubble is a Local Chimney: A New Model from 3D Dust Mapping” O’Neill et al. (arXiv:2403.04961)

4/5 honors day – no meeting
4/12 Celly Jimenez

“AGN Selection and Demographics: A New Age with JWST/MIRI” Lyu et al. (arXiv:2310.12330)

Elizabeth Warrick

“The impact of void-finding algorithms on galaxy classification” Zaidouni et al. (arXiv:2403.20008)

4/19 Peter Gwartney

“The ALMaQUEST Survey XIV: do radial molecular gas flows affect the star-forming ability of barred galaxies?” Hogarth et al. (2024MNRAS.528.6768H)

Sanchari Kundu

“TeV flaring activity of the AGN PKS 0625-354 in November 2018” HESS Collaboration (2024A&A…683A..70H)

Matthew Marsee

“Observation of Seven Astrophysical Tau Neutrino Candidates with IceCube” IceCube Collaboration (arXiv:2403.02516)

Sricharan Balaji

“Formation and structure of circumplanetary disks and envelopes during the late stages of giant planet formation” Taylor & Adams (2024Icar..41516044T)

4/26 Annelia Anderson

“The Circumgalactic Dictionary: An Interpretation Guide for Circumgalactic Medium Observations” (original research)

Ryker von Klar

“Simulating the Circumgalactic Medium” (original research)

Nethra Rajavel

“Type Ia supernova explosion models are inherently multidimensional” Pakmor et al. (arXiv:2402.11010)

In addition to these weekly meetings, several students chose to have the talk for their annual meeting with their dissertation committee be open:

  • Sam Boos – Jan 25 – Double and Quadruple Detonation Type Ia Supernovae
  • Ava Ghadimi – Feb 16 – Searching for Neutrinos from Magnetars
  • Praphull Kumar – Mar 8 – Seismology of Accreting White Dwarf Stars