36 citations · 119 across the 15 of their papers we have counts for
16 papers
NGC 4936: abundant multi-phase medium in the central weak X-ray cool core and optically dark H I clouds in the group
Prathamesh Tamhane, Ming Sun, Hao Chen +6
We present a multiwavelength analysis of NGC 4936, the central galaxy of a weak cool-core group hosting an unusually large cold/warm gas reservoir. NGC 4936 contains $\sim2\times10…
Cavity-driven Gas Transport in Cool-Core Clusters: Implications for Multiphase Gas Cooling
Prathamesh Tamhane, Brian McNamara, Paul Nulsen
We present a study of gas uplift by cavities and its role in promoting the formation of molecular gas in cool-core galaxy clusters. Using a sample of 24 clusters, we quantify the p…
Mapping Gas Accretion and Stellar Kinematics to Sub-kiloparsec Scales in NGC 4696 with JWST/NIRSpec
Mathieu Marquis, Julie Hlavacek-Larrondo, Olivia Pereira +35
We present JWST/NIRSpec IFU spectroscopy of the central pc () of NGC 4696, the BCG in the Centaurus cluster. Leveraging the (…
JWST reveals how black holes are fed: kiloparsec-scale multiphase filaments feed sub-kiloparsec circumnuclear disks
Julie Hlavacek-Larrondo, Hyunseop Choi, Minghao Guo +35
The Centaurus cluster is one of the most important archetypes of radio-mode AGN feedback, with its central galaxy, NGC 4696, launching powerful jets that inflate X-ray cavities and…
HST view of NGC 5044: Constraints on Filament Widths, Magnetic Support, Multiphase Structure, and Comparison with Cluster Environments
Prathamesh Tamhane, Ming Sun, William Waldron +12
We present new Hubble Space Telescope (HST) imaging of ionised filaments in the brightest group galaxy NGC 5044. These filaments extend several kiloparsecs and have widths of $\sim…
A Natural Language Interface for Efficient Data Retrieval in SDSS
Prathamesh Tamhane
Modern astronomical surveys such as the Sloan Digital Sky Survey (SDSS) provide extensive astronomical databases enabling researchers to access vast amount of diverse data. However…
XRISM constraints on unidentified X-ray emission lines, including the 3.5 keV line, in the stacked spectrum of ten galaxy clusters
XRISM Collaboration, Marc Audard, Hisamitsu Awaki +150
We stack 3.75 Megaseconds of early XRISM Resolve observations of ten galaxy clusters to search for unidentified spectral lines in the 2.5-15 keV band (rest frame), including t…
Constraining star formation in M87 using deep HST UV data
Prathamesh Tamhane, William Waldron, Ming Sun +11
We analyzed the deepest Hubble Space Telescope (HST) F275W ultraviolet (UV) imaging of M87 to obtain the most robust constraints on its star formation rate (SFR) and star formation…
Constraining gas motion and non-thermal pressure beyond the core of the Abell 2029 galaxy cluster with XRISM
XRISM Collaboration, Marc Audard, Hisamitsu Awaki +137
We report a detailed spectroscopic study of the gas dynamics and hydrostatic mass bias of the galaxy cluster Abell 2029, utilizing high-resolution observations from XRISM Resolve.…
Can AGN activity be enhanced by ram pressure stripping? -- X-ray perspective
Juhi Tiwari, Ming Sun, Rongxin Luo +3
Ram pressure stripping (RPS) is an important process that plays a significant role in shaping the evolution of cluster galaxies and their surrounding environment. Despite its recog…
A massive multiphase plume of gas in Abell 2390's brightest cluster galaxy
Tom Rose, B. R. McNamara, F. Combes +6
We present new ALMA CO(2-1) observations tracing solar masses of molecular gas in Abell 2390's brightest cluster galaxy, where half the gas is located in a one…
Radio jet-ISM interaction and positive radio-mechanical feedback in Abell 1795
Prathamesh D. Tamhane, Brian R. McNamara, Helen R. Russell +8
We present XSHOOTER observations with previous ALMA, MUSE and observations to study the nature of radio-jet triggered star formation and the interaction of radio jets with th…
Molecular Flows in Contemporary Active Galaxies and the Efficacy of Radio-Mechanical Feedback
Prathamesh D. Tamhane, Brian R. McNamara, Helen R. Russell +4
Molecular gas flows are analyzed in 14 cluster galaxies (BCGs) centered in cooling hot atmospheres. The BCGs contain of molecular gas, much of which is…
Thermally Unstable Cooling Stimulated by Uplift: The Spoiler Clusters
C. G. Martz, B. R. McNamara, P. E. J. Nulsen +9
We analyzed Chandra X-ray observations of five galaxy clusters whose atmospheric cooling times, entropy parameters, and cooling time to free-fall time ratios within the central gal…
Origins of molecular clouds in early-type galaxies
Iu. V. Babyk, B. R. McNamara, P. D. Tamhane +3
We analyze observations of the hot atmospheres of 40 early spiral and elliptical galaxies. Using new temperature, density, cooling time, and mass profiles, we explore rel…
J021659-044920: a relic giant radio galaxy at z ~ 1.3
Prathamesh Tamhane, Yogesh Wadadekar, Aritra Basu +4
We report the discovery of a relic Giant Radio Galaxy (GRG) J021659-044920 at redshift that exhibits large-scale extended, nearly co-spatial, radio and X-ray emission…