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Resilience of sloshing cold fronts against subsequent minor mergers (2022)
Journal Article
Vaezzadeh, I., Roediger, E., Cashmore, C., Hunt, M., Zuhone, J., Forman, W., …Churazov, E. (2022). Resilience of sloshing cold fronts against subsequent minor mergers. Monthly notices of the Royal Astronomical Society, 514(1), 518-534. https://doi.org/10.1093/mnras/stac784

Minor mergers are common in galaxy clusters. They have the potential to create sloshing cold fronts (SCFs) in the intracluster medium of the cluster. However, the resilience of SCFs to subsequent minor mergers is unknown. Here we investigate the exte... Read More about Resilience of sloshing cold fronts against subsequent minor mergers.

GASP XXIX-unwinding the arms of spiral galaxies via ram-pressure stripping (2020)
Journal Article
Bellhouse, C., McGee, S. L., Smith, R., Poggianti, B. M., Jaffé, Y. L., Kraljic, K., …Shin, J. (2020). GASP XXIX-unwinding the arms of spiral galaxies via ram-pressure stripping. Monthly notices of the Royal Astronomical Society, 500(1), 1285-1312. https://doi.org/10.1093/mnras/staa3298

We present the first study of the effect of ram pressure ‘unwinding’ the spiral arms of cluster galaxies. We study 11 ram-pressure stripped galaxies from GASP (GAs Stripping Phenomena in galaxies) in which, in addition to more commonly observed ‘jell... Read More about GASP XXIX-unwinding the arms of spiral galaxies via ram-pressure stripping.

GASP. XXI. Star Formation Rates in the Tails of Galaxies Undergoing Ram Pressure Stripping (2020)
Journal Article
Gullieuszik, M., Poggianti, B. M., McGee, S. L., Moretti, A., Vulcani, B., Tonnesen, S., …Wolter, A. (2020). GASP. XXI. Star Formation Rates in the Tails of Galaxies Undergoing Ram Pressure Stripping. The Astrophysical journal, 899(1), Article 13. https://doi.org/10.3847/1538-4357/aba3cb

© 2020. The American Astronomical Society. All rights reserved.. Using MUSE observations from the GASP survey, we study 54 galaxies undergoing ram pressure stripping (RPS) and spanning a wide range in galaxy mass and host cluster mass. We use this ri... Read More about GASP. XXI. Star Formation Rates in the Tails of Galaxies Undergoing Ram Pressure Stripping.

The ram pressure stripped radio tails of galaxies in the Coma cluster (2020)
Journal Article
Chen, H., Sun, M., Yagi, M., Bravo-Alfaro, H., Brinks, E., Kenney, J., …Roediger, E. (2020). The ram pressure stripped radio tails of galaxies in the Coma cluster. Monthly notices of the Royal Astronomical Society, 496(4), 4654-4673. https://doi.org/10.1093/mnras/staa1868

Previous studies have revealed a population of galaxies in galaxy clusters with ram pressure stripped (RPS) tails of gas and embedded young stars. We observed 1.4 GHz continuum and H I emission with the Very Large Array in its B-configuration in two... Read More about The ram pressure stripped radio tails of galaxies in the Coma cluster.

GASP. XXII. the Molecular Gas Content of the JW100 Jellyfish Galaxy at z ∼ 0.05: Does Ram Pressure Promote Molecular Gas Formation? (2020)
Journal Article
Moretti, A., Paladino, R., Poggianti, B. M., Serra, P., Roediger, E., Gullieuszik, M., …Wolter, A. (2020). GASP. XXII. the Molecular Gas Content of the JW100 Jellyfish Galaxy at z ∼ 0.05: Does Ram Pressure Promote Molecular Gas Formation?. The Astrophysical journal, 889(1), https://doi.org/10.3847/1538-4357/ab616a

Within the GASP survey, aimed at studying the effect of ram pressure stripping on star formation quenching in cluster galaxies, we analyze here ALMA observations of the jellyfish galaxy JW100. We find an unexpected large amount of molecular gas (∼2.5... Read More about GASP. XXII. the Molecular Gas Content of the JW100 Jellyfish Galaxy at z ∼ 0.05: Does Ram Pressure Promote Molecular Gas Formation?.

GASP XXIII: a jellyfish galaxy as an astrophysical laboratory of the baryonic cycle (2019)
Journal Article
Poggianti, B. M., Ignesti, A., Gitti, M., Wolter, A., Brighenti, F., Biviano, A., …Omizzolo, A. (2019). GASP XXIII: a jellyfish galaxy as an astrophysical laboratory of the baryonic cycle. The Astrophysical journal, 887(2), Article 155. https://doi.org/10.3847/1538-4357/ab5224

© 2019. The American Astronomical Society. All rights reserved. With MUSE, Chandra, VLA, ALMA, and UVIT data from the GASP program, we study the multiphase baryonic components in a jellyfish galaxy (JW100) with a stellar mass 3.2 × 1011 M o hosting a... Read More about GASP XXIII: a jellyfish galaxy as an astrophysical laboratory of the baryonic cycle.

The rotational profiles of cluster galaxies (2019)
Journal Article
Bilton, L. E., Hunt, M., Pimbblet, K. A., & Roediger, E. (2019). The rotational profiles of cluster galaxies. Monthly notices of the Royal Astronomical Society, 490(4), 5017-5032. https://doi.org/10.1093/mnras/stz2927

© 2019 The Author(s) We compile two samples of cluster galaxies with complimentary hydrodynamic and N-body analysis using FLASH code to ascertain how their differing populations drive their rotational profiles and to better understand their dynamical... Read More about The rotational profiles of cluster galaxies.

ALMA Unveils Widespread Molecular Gas Clumps in the Ram Pressure Stripped Tail of the Norma Jellyfish Galaxy (2019)
Journal Article
Jáchym, P., Kenney, J. D., Sun, M., Combes, F., Cortese, L., Scott, T. C., …Fumagalli, M. (2019). ALMA Unveils Widespread Molecular Gas Clumps in the Ram Pressure Stripped Tail of the Norma Jellyfish Galaxy. The Astrophysical journal, 883(2), Article 145. https://doi.org/10.3847/1538-4357/ab3e6c

© 2019 The American Astronomical Society. All rights reserved. We present the first high-resolution map of the cold molecular gas distribution as traced by CO(2-1) emission with ALMA in a long ram pressure stripped tail. The Norma cluster galaxy ESO... Read More about ALMA Unveils Widespread Molecular Gas Clumps in the Ram Pressure Stripped Tail of the Norma Jellyfish Galaxy.

Extended X-ray study of M49: The frontier of the Virgo cluster (2019)
Journal Article
Su, Y., Kraft, R. P., Nulsen, P. E. J., Jones, C., Maccarone, T. J., Mernier, F., …Churazov, E. (2019). Extended X-ray study of M49: The frontier of the Virgo cluster. Astronomical Journal, 158(1), Article 6. https://doi.org/10.3847/1538-3881/ab1d51

The M49 group, residing outside the virial radius of the Virgo cluster, is falling onto the cluster from the south. We report results from deep XMM-Newton mosaic observations of M49. Its hot gas temperature is 0.8 keV at the group center and rises to... Read More about Extended X-ray study of M49: The frontier of the Virgo cluster.

A new class of x-ray tails of early-type galaxies and subclusters in galaxy clusters: Slingshot tails versus ram pressure stripped tails (2019)
Journal Article
Sheardown, A., Fish, T. M., Roediger, E., Hunt, M., Zuhone, J., Su, Y., …De Grandi, S. (2019). A new class of x-ray tails of early-type galaxies and subclusters in galaxy clusters: Slingshot tails versus ram pressure stripped tails. The Astrophysical journal, 874(2), 112. https://doi.org/10.3847/1538-4357/ab0c06

© 2019. The American Astronomical Society. All rights reserved.. We show that there is a new class of gas tails - slingshot tails - that form as a subhalo (i.e., a subcluster or early-type cluster galaxy) moves away from the cluster center toward the... Read More about A new class of x-ray tails of early-type galaxies and subclusters in galaxy clusters: Slingshot tails versus ram pressure stripped tails.

Close-up view of an ongoing merger between the NGC 4839 group and the Coma cluster - a post-merger scenario (2019)
Journal Article
Lyskova, N., Churazov, E., Zhang, C., Forman, W., Jones, C., Dolag, K., …Sheardown, A. (2019). Close-up view of an ongoing merger between the NGC 4839 group and the Coma cluster - a post-merger scenario. Monthly notices of the Royal Astronomical Society, 485(2), 2922-2934. https://doi.org/10.1093/mnras/stz597

We study a merger of the NGC 4839 group with the Coma cluster using X-ray observations from the XMM–Newton and Chandra telescopes. X-ray data show two prominent features: (i) a long (∼600 kpc in projection) and bent tail of cool gas trailing (towards... Read More about Close-up view of an ongoing merger between the NGC 4839 group and the Coma cluster - a post-merger scenario.

Constraining Gas Motions in the Intra-Cluster Medium (2019)
Journal Article
Simionescu, A., ZuHone, J., Zhuravleva, I., Churazov, E., Gaspari, M., Nagai, D., …Paerels, F. (2019). Constraining Gas Motions in the Intra-Cluster Medium. Space Science Reviews, 215(2), Article 24. https://doi.org/10.1007/s11214-019-0590-1

The detailed velocity structure of the diffuse X-ray emitting intra-cluster medium (ICM) remains one of the last missing key ingredients in understanding the microphysical properties of these hot baryons and constraining our models of the growth and... Read More about Constraining Gas Motions in the Intra-Cluster Medium.

Variability and proper motion of x-ray knots in the jet of Centaurus A (2019)
Journal Article
Snios, B., Wykes, S., Nulsen, P. E. . J., Kraft, R. P., Meyer, E. T., Birkinshaw, M., …Jones, C. (2019). Variability and proper motion of x-ray knots in the jet of Centaurus A. The Astrophysical journal, 871(2), Article 248. https://doi.org/10.3847/1538-4357/aafaf3

© 2019. The American Astronomical Society. All rights reserved. We report results from Chandra observations analyzed for evidence of variability and proper motion in the X-ray jet of Centaurus A. Using data spanning 15 yr, collective proper motion o... Read More about Variability and proper motion of x-ray knots in the jet of Centaurus A.

Spectacular Hubble Space Telescope Observations of the Coma Galaxy D100 and Star Formation in Its Ram Pressure-stripped Tail (2019)
Journal Article
Cramer, W. J., Kenney, J. D., Sun, M., Crowl, H., Yagi, M., Jáchym, P., …Waldron, W. (2019). Spectacular Hubble Space Telescope Observations of the Coma Galaxy D100 and Star Formation in Its Ram Pressure-stripped Tail. The Astrophysical journal, 870(2), 63. https://doi.org/10.3847/1538-4357/aaefff

© 2019. The American Astronomical Society. We present new HST F275W, F475W, and F814W imaging of the region of the Coma cluster around D100, a spiral galaxy with a remarkably long and narrow (60 × 1.5 kpc) ram pressure-stripped gas tail. We find blue... Read More about Spectacular Hubble Space Telescope Observations of the Coma Galaxy D100 and Star Formation in Its Ram Pressure-stripped Tail.

The recent growth history of the Fornax Cluster derived from simultaneous sloshing and gas stripping: Simulating the infall of NGC 1404 (2018)
Journal Article
Sheardown, A., Roediger, E., Su, Y., Kraft, R. P., Fish, T., ZuHone, J. A., …Nulsen, P. E. (2018). The recent growth history of the Fornax Cluster derived from simultaneous sloshing and gas stripping: Simulating the infall of NGC 1404. The Astrophysical journal, 865(2), 118. https://doi.org/10.3847/1538-4357/aadc0f

We derive the recent growth history of the Fornax Cluster, in particular the recent infall of the giant elliptical galaxy NGC 1404. We show, using a simple cluster minor merger simulation tailored to Fornax and NGC 1404, that a second or more likely... Read More about The recent growth history of the Fornax Cluster derived from simultaneous sloshing and gas stripping: Simulating the infall of NGC 1404.

Gas sloshing regulates and records the evolution of the Fornax Cluster (2017)
Journal Article
Su, Y., Nulsen, P. E., Kraft, R. P., Roediger, E., Zuhone, J. A., Jones, C., …Randall, S. W. (2017). Gas sloshing regulates and records the evolution of the Fornax Cluster. The Astrophysical journal, 851(1), 69. https://doi.org/10.3847/1538-4357/aa989e

We present results of a joint Chandra and XMM-Newton analysis of the Fornax Cluster, the nearest galaxy cluster in the southern sky. Signatures of merger-induced gas sloshing can be seen in the X-ray image. We identify four sloshing cold fronts in th... Read More about Gas sloshing regulates and records the evolution of the Fornax Cluster.

Stripped elliptical galaxies as probes of ICM physics : III. Deep Chandra observation of NGC 4552 - Measuring the viscosity of the intracluster medium (2017)
Journal Article
Kraft, R. P., Roediger, E., Machacek, M., Forman, W. R., Nulsen, P. E., Jones, C., …Sheardown, A. (2017). Stripped elliptical galaxies as probes of ICM physics : III. Deep Chandra observation of NGC 4552 - Measuring the viscosity of the intracluster medium. The Astrophysical journal, 848(1), Article ARTN 27. https://doi.org/10.3847/1538-4357/aa8a6e

We present results from a deep (200 ks) Chandra observation of the early-type galaxy NGC 4552 (M89) which is falling into the Virgo cluster. Previous shallower X-ray observations of this galaxy showed a remnant gas core, a tail to the South of the ga... Read More about Stripped elliptical galaxies as probes of ICM physics : III. Deep Chandra observation of NGC 4552 - Measuring the viscosity of the intracluster medium.

Uplift, Feedback, and Buoyancy: Radio Lobe Dynamics in NGC 4472 (2017)
Journal Article
Gendron-Marsolais, M., Kraft, R. P., Bogdan, A., Hlavacek-Larrondo, J., Forman, W. R., Jones, C., …Roediger, E. (2017). Uplift, Feedback, and Buoyancy: Radio Lobe Dynamics in NGC 4472. The Astrophysical journal, 848(1), 26. https://doi.org/10.3847/1538-4357/aa8a6f

© 2017. The American Astronomical Society. All rights reserved. We present results from deep (380 ks) Chandra observations of the active galactic nucleus (AGN) outburst in the massive early-type galaxy NGC 4472. We detect cavities in the gas coincide... Read More about Uplift, Feedback, and Buoyancy: Radio Lobe Dynamics in NGC 4472.

The infall of the Virgo elliptical galaxy M60 toward M87 and the gaseous structures produced by Kelvin-Helmholtz instabilities (2017)
Journal Article
Wood, R. A., Jones, C., Machacek, M. E., Forman, W. R., Bogdan, A., Andrade-Santos, F., …Roediger, E. (2017). The infall of the Virgo elliptical galaxy M60 toward M87 and the gaseous structures produced by Kelvin-Helmholtz instabilities. The Astrophysical journal, 847(1), Article ARTN 79. https://doi.org/10.3847/1538-4357/aa8723

We present Chandra observations of hot gas structures, characteristic of gas stripping during infall, in the Virgo cluster elliptical galaxy M60 (NGC4649) located 1 Mpc east of M87. 0.5−2 keV Chandra X-ray images show a sharp leading edge in the surf... Read More about The infall of the Virgo elliptical galaxy M60 toward M87 and the gaseous structures produced by Kelvin-Helmholtz instabilities.

Deep Chandra observations of the stripped galaxy group falling into Abell 2142 (2017)
Journal Article
Eckert, D., Gaspari, M., Owers, M. S., Molendi, S., Gastaldello, F., Paltani, S., …Venturi, T. (2017). Deep Chandra observations of the stripped galaxy group falling into Abell 2142. Astronomy and Astrophysics, 605(September), A25. https://doi.org/10.1051/0004-6361/201730555

In the local Universe, the growth of massive galaxy clusters mainly operates through the continuous accretion of group-scale systems. The infalling group in Abell 2142 is the poster child of such an accreting group, and as such, it is an ideal target... Read More about Deep Chandra observations of the stripped galaxy group falling into Abell 2142.