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The first detection of CO emission in a Fanaroff-Riley Class II (i.e., edge-brightened radio morphology) radio galaxy is presented. Multi- wavelength (0.36-2.17 micron) imaging of 3C 293 shows it to be a disk galaxy with an optical jet or…

Astrophysics · Physics 2009-10-31 A. S. Evans , D. B. Sanders , J. A. Surace , J. M. Mazzarella

Outflows play a central role in galaxy evolution shaping the properties of galaxies. Understanding outflows and their effects in low luminosity AGNs, such as LINERs, is essential (e.g. they are a numerous AGN population in the local…

The core of the nearby galaxy NGC660 has recently undergone a spectacular radio outburst; using a combination of archival radio and Chandra X-ray data, together with new observations, the nature of this event is investigated. Radio…

Astrophysics of Galaxies · Physics 2015-08-06 Megan Argo , Ilse van Bemmel , Sam Connolly , Robert Beswick

Feedback and outflows in galaxies that are associated with a quasar phase are expected to be pivotal in quenching the most massive galaxies. However, observations targeting the molecular outflow phase, which dominates both the mass and…

NGC 2359 is an HII region located in the outer Galaxy that contains the isolated Wolf-Rayet (WR) star HD 56925. We present millimeter/submillimeter observations of $^{12}$CO($J$ = 1-0, 3-2) line emission toward the entire nebula. We…

Galaxies which strongly deviate from the radio-far IR correlation are of great importance for studies of galaxy evolution as they may be tracing early, short-lived stages of starbursts and active galactic nuclei (AGNs). The most extreme…

Astrophysics of Galaxies · Physics 2016-10-26 F. Costagliola , R. Herrero-Illana , A. Lohfink , M. Pérez-Torres , S. Aalto , S. Muller , A. Alberdi

We have detected extremely wide (1100 km/s) CO(1-0) emission from NGC 1144, an interacting, luminous infrared galaxy that is the dominant component of the Arp 118 system. The observations show that NGC 1144 is one of the most CO luminous…

Astrophysics · Physics 2009-10-30 Yu Gao , P. M. Solomon , D. Downes , S. J. E. Radford

We report ALMA and SMA observations of the luminous infrared merger NGC 3256, the most luminous galaxy within z=0.01. Both of the two merger nuclei separated by 5" (0.8 kpc) on the sky have a compact concentration of molecular gas, i.e.,…

Astrophysics of Galaxies · Physics 2014-12-08 Kazushi Sakamoto , Susanne Aalto , Francoise Combes , Aaron Evans , Alison Peck

Using the IRAM 30m radio telescope we have mapped the tidal arm feature south-east of NGC 3077 where we recently detected molecular gas in the CO (1-0) and (2-1) transitions. We find that the molecular gas is much more extended than…

Astrophysics · Physics 2007-05-23 Fabian Walter , Andreas Heithausen

We present the highest resolution (1") $^{12}$CO(1-0) observations of molecular gas in the dwarf starburst galaxy NGC 625, to date, obtained with ALMA. Molecular gas is distributed in discrete clouds within an area of $0.4$ kpc$^2$ and does…

Astrophysics of Galaxies · Physics 2020-05-27 Nia Imara , Ilse De Looze , Christopher M. Faesi , Diane Cormier

Low-luminosity Active Galactic Nuclei, i.e. L_bol/L_edd ~ 10^-6 - 10^-3, constitute the bulk population of Active Galactic Nuclei (AGNs). Powerful jets, common in these objects, are a crucial source of feedback energy driving mass outflows…

Astrophysics of Galaxies · Physics 2017-07-26 A. Rodríguez-Ardila , M. A. Prieto , X. Mazzalay , J. A. Fernández-Ontiveros , R. Luque , F. Müller-Sánchez

We report the arcsecond resolution SMA observations of the $^{12}$CO (2-1) transition in the massive cluster forming region G10.6-0.4. In these observations, the high velocity $^{12}$CO emission is resolved into individual outflow systems,…

Solar and Stellar Astrophysics · Physics 2015-05-20 Hauyu Baobab Liu , Paul T. P. Ho , Qizhou Zhang

We present the results of HCN/HCO+/HNC J=4-3 transition line observations of the nearby starburst galaxy NGC 1614, obtained with ALMA Cycle 0. We find that high density molecular gas, traced with these lines, shows a velocity structure such…

Astrophysics of Galaxies · Physics 2015-06-16 Masatoshi Imanishi , Kouichiro Nakanishi

The link between the circum-galactic medium (CGM) and the stellar growth of massive galaxies at high-$z$ depends on the properties of the widespread cold molecular gas. As part of the SUPERCOLD-CGM survey (Survey of Protocluster ELANe…

AGN-driven outflows are believed to play an important role in regulating the growth of galaxies mostly via negative feedback. However, their effects on their hosts are far from clear, especially for low and moderate luminosity Seyferts. To…

We study emission line profiles of 21 nearby low-mass ($M_*=10^4-10^7~M_\odot$) galaxies in deep medium-high resolution spectra taken with Magellan/MagE. These low-mass galaxies are actively star-forming systems with high specific…

We use optical spectra from the inner 2$\times$3kpc$^2$ of the Seyfert 2 galaxy NGC1667, obtained with the GMOS integral field spectrograph on the Gemini South telescope at a spatial resolution of $\approx$ 240pc, to assess the feeding and…

Astrophysics of Galaxies · Physics 2017-01-18 Allan Schnorr-Müller , Thaisa Storchi-Bergmann , Fabricio Ferrari , Neil M. Nagar

Young early-type HAeBe stars are still embedded in the molecular clouds in which they formed. They illuminate reflection nebulae, which shape the surrounding molecular cloud and may trigger star formation. They are therefore ideal places to…

Astrophysics of Galaxies · Physics 2024-03-22 G. Sandell , B. Mookerjea , R. Güsten

We present the results of a search for molecular gas emission via the CO line in the far outer disk of the nearby spiral, NGC 6946. The positions targeted were chosen to lie on or near previously-identified outer disk HII regions. Molecular…

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