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Related papers: Jet-induced star formation in 3C 285 and Minkowski…

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We present an update of our on-going project to characterise the impact of radio jets on the ISM by tracing molecular gas at high spatial resolution using ALMA. The radio active galactic nuclei (AGN) studied show recently born radio jets.…

High Energy Astrophysical Phenomena · Physics 2021-07-01 Raffaella Morganti , Tom Oosterloo , Clive N. Tadhunter

We present the results of large-area CO J=3-2 emission mapping of three nearby field galaxies, NGC 628, NGC 3521, and NGC 3627, completed at the James Clerk Maxwell Telescope as part of the Nearby Galaxies Legacy Survey. These galaxies all…

This is the third paper of a series exploring the multi-frequency properties of a sample of eleven nearby low-excitation radio galaxies (LERGs) in the southern sky. We are conducting an extensive study of different galaxy components (stars,…

Astrophysics of Galaxies · Physics 2020-10-21 I. Ruffa , R. A. Laing , I. Prandoni , R. Paladino , P. Parma , T. A. Davis , M. Bureau

We present ALMA Band 6 observations of the CO(2-1), HCN(3-2), and HCO$^{+}$(3-2) lines in the nearby radio galaxy / brightest cluster galaxy (BCG) of NGC 1275 with the spatial resolution of $\sim20$ pc. In the previous observations, CO(2-1)…

Astrophysics of Galaxies · Physics 2019-10-09 H. Nagai , K. Onishi , N. Kawakatu , Y. Fujita , M. Kino , Y. Fukazawa , J. Lim , W. Forman , J. Vrtilek , K. Nakanishi , H. Noda , K. Asada , K. Wajima , Y. Ohyama , L. David

A major amendment in recent models of hierarchical galaxy formation is the inclusion of so-called AGN feedback. The energy input from an active central massive black hole is invoked to suppress star formation in early-type galaxies at later…

The jets launched by actively accreting black holes are capable of launching several of the massive (million or billion solar mass) molecular outflows observed in galaxies. These outflows could suppress or enhance star formation in…

Astrophysics of Galaxies · Physics 2022-05-12 K. M. Dasyra , G. F. Paraschos , T. Bisbas , F. Combes , J. A. Fernandez-Ontiveros

Eight dwarf starburst galaxies have been observed with the Caltech Submillimeter Observatory (CSO) telescope in the CO J= 3 - 2 transition. The galaxies observed are He 2-10, NGC 5253, NGC 1569, NGC 3077, Haro 2, Haro 3, II Zw 40 and Mrk…

Astrophysics · Physics 2009-10-31 David S. Meier , Jean L. Turner , Lucian P. Crosthwaite , Sara C. Beck

Active galactic nuclei (AGN) feedback operated by the expansion of radio jets can play a crucial role in driving gaseous outflows on galaxy scales. Galaxies hosting young radio AGN, whose jets are in the first phases of expansion through…

Astrophysics of Galaxies · Physics 2021-01-04 F. Santoro , C. Tadhunter , D. Baron , R. Morganti , J. Holt

We analyse star formation in the nuclei of 9 Seyfert galaxies at spatial resolutions down to 0.085arcsec, corresponding to length scales of less than 10pc in some objects. Our data were taken mostly with the near infrared adaptive optics…

Astrophysics · Physics 2009-11-13 R. Davies , F. Mueller Sanchez , R. Genzel , L. Tacconi , E. Hicks , S. Friedrich , A. Sternberg

We present near-infrared ($H$- and $K$-band) integral-field observations of the inner $\sim$700pc of the active spiral galaxy NGC613, obtained with SINFONI on the Very Large Telescope. We use emission-line ratios to determine the dominant…

Astrophysics of Galaxies · Physics 2015-06-17 J. Falcón-Barroso , C. Ramos Almeida , T. Böker , E. Schinnerer , J. H. Knapen , A. Lançon , S. Ryder

We aim to test the model proposed to explain the correlation between the flux density at 15 GHz of a stationary component in the parsec-scale jet and the optical continuum emission in the radio galaxy 3C~390.3. In the model, the…

Astrophysics · Physics 2009-06-23 J. Leon-Tavares , A. P. Lobanov , V. H. Chavushyan , T. G. Arshakian

Highly collimated relativistic jets are a defining feature of certain active galactic nuclei (AGN), yet their formation mechanism remains elusive. Previous observations and theoretical models have proposed that the ambient medium…

High Energy Astrophysical Phenomena · Physics 2024-05-22 Jongho Park , Motoki Kino , Hiroshi Nagai , Masanori Nakamura , Keiichi Asada , Minchul Kam , Jeffrey A. Hodgson

Relativistic jets are the most energetic manifestation of the active galactic nucleus (AGN) phenomenon. AGN jets are observed from the radio through gamma-rays and carry copious amounts of matter and energy from the sub-parsec central…

Recent efforts to characterise the molecular gas content of brightest cluster galaxies (BCGs) at intermediate redshift have revealed a sub-population of gas-rich systems, whose star formation activity is likely influenced by environmental…

The under-abundance of very massive galaxies in the universe is frequently attributed to the effect of galactic winds. Although ionized galactic winds are readily observable most of the expelled mass is likely in cooler atomic and molecular…

Our adaptive optics observations of nearby AGN at spatial resolutions as small as 0.085arcsec show strong evidence for recent, but no longer active, nuclear star formation. We begin by describing observations that highlight two contrasting…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 R. I. Davies , E. Hicks , M. Schartmann , R. Genzel , L. J. Tacconi , H. Engel , A. Burkert , M. Krause , A. Sternberg , F. Mueller Sanchez , W. Maciejewski

In order to distinguish between the various components of massive star forming regions (i.e. infalling, outflowing and rotating gas structures) within our own Galaxy, we require high angular resolution observations which are sensitive to…

Astrophysics · Physics 2007-10-23 P. D. Klaassen , C. D. Wilson

Over the last decade, observations of the cool interstellar medium in distant galaxies via molecular and atomic fine structure line emission has gone from a curious look into a few extreme, rare objects, to a mainstream tool to study galaxy…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Chris Carilli , Fabian Walter

We present a joint analysis of high-resolution CO(2-1) and Paschen-$\alpha$ emission lines to trace gas dynamics and spatially resolved star formation in ASPECS-LP.3mm.06, a $z=1.1$ main sequence galaxy. Utilizing data from the ALMA and…

Astrophysics of Galaxies · Physics 2025-01-22 Zhaoran Liu , Tadayuki Kodama , Takahiro Morishita , Kianhong Lee , Fengwu Sun , Mariko Kubo , Zheng Cai , Yunjing Wu , Zihao Li

We are presenting here a follow-up study of the molecular gas and dust in the environs of the star forming region NGC 3503. This study aims at dealing with the interaction of NGC 3503 with its parental molecular cloud, and also with the…

Astrophysics of Galaxies · Physics 2014-05-08 N. U. Duronea , J. Vasquez , G. A. Romero , C. E. Cappa , R. Barbá , L. Bronfman