Results 81 to 90 of about 3,113,929 (197)

Multi-color imaging of selected southern interacting galaxies [PDF]

, 1990
The authors present preliminary results from a study of selected Arp-Madore Southern Hemisphere peculiar galaxies. Broadband charge coupled device (CCD) images (BVRI) of a subset of these galaxies allow us to study each galaxy's optical morphology, color,
Hintzen, Paul, Smith, Eric P.
core  

The Cosmic Owl: Twin Active Collisional Ring Galaxies with Starburst Merging Front at z = 1.14

The Astrophysical Journal
Galaxy mergers play a critical role in driving galaxy evolution, especially by transforming galaxy morphology, redistributing gas around galaxies, triggering active galactic nuclei (AGN), and stimulating star formation.
Mingyu Li, Bjorn H. C. Emonts, Zheng Cai, Takumi S. Tanaka, Wilfried Mercier, Yunjing Wu, Fujiang Yu, Fengwu Sun, Fuyan Bian, Emanuele Daddi, Xiaohui Fan, Xiaojing Lin, Jianwei Lyu, Jeyhan S. Kartaltepe, Francesco Valentino   +14 more
doaj   +1 more source

Euclid: Quick Data Release (Q1) – The connection between galaxy close encounters and radio activity★

Astronomy & Astrophysics
Using the vast statistics provided by both Euclid and the LOFAR surveys, we present the first large-scale study of the connection among radio emission, its morphology, and the merging properties of the hosts of radio sources up to z ∼ 2.
Magliocchetti M., La Marca A., Bisigello L., Bondi M., Ricci F., Fotopoulou S., Wang L., Scaramella R., Pentericci L., Prandoni I., Sorce J. G., Rottgering H. J. A., Hardcastle M. J., Petley J., La Franca F., Rubinur K., Toba Y., Zhong Y., Mezcua M., Zamorani G., Shankar F., Altieri B., Andreon S., Auricchio N., Baccigalupi C., Baldi M., Bardelli S., Biviano A., Branchini E., Brescia M., Brinchmann J., Camera S., Cañas-Herrera G., Capobianco V., Carbone C., Carretero J., Castellano M., Castignani G., Cavuoti S., Chambers K. C., Cimatti A., Colodro-Conde C., Congedo G., Conselice C. J., Conversi L., Copin Y., Costille A., Courbin F., Courtois H. M., Cropper M., Da Silva A., Degaudenzi H., De Lucia G., Di Giorgio A. M., Dole H., Dubath F., Duncan C. A. J., Dupac X., Dusini S., Escoffier S., Farina M., Farinelli R., Faustini F., Ferriol S., Finelli F., Frailis M., Franceschi E., Franzetti P., Fumana M., Galeotta S., George K., Gillis B., Giocoli C., Gracia-Carpio J., Grazian A., Grupp F., Haugan S. V. H., Hoar J., Holmes W., Hook I. M., Hormuth F., Hornstrup A., Jahnke K., Jhabvala M., Joachimi B., Keihänen E., Kermiche S., Kiessling A., Kubik B., Kümmel M., Kurki-Suonio H., Le Brun A. M. C., Ligori S., Lilje P. B., Lindholm V., Lloro I., Mainetti G., Maino D., Maiorano E., Mansutti O., Marggraf O., Martinelli M., Martinet N., Marulli F., Massey R. J., Medinaceli E., Mei S., Mellier Y., Meneghetti M., Merlin E., Meylan G., Mora A., Moresco M., Moscardini L., Nakajima R., Neissner C., Nichol R. C., Niemi S.-M., Padilla C., Paltani S., Pasian F., Pedersen K., Percival W. J., Pettorino V., Pires S., Polenta G., Poncet M., Popa L. A., Pozzetti L., Raison F., Renzi A., Rhodes J., Riccio G., Romelli E., Roncarelli M., Saglia R., Sakr Z., Sapone D., Sartoris B., Schirmer M., Schneider P., Schrabback T., Secroun A., Seidel G., Serrano S., Simon P., Sirignano C., Sirri G., Stanco L., Steinwagner J., Tallada-Crespí P., Taylor A. N., Tereno I., Tessore N., Toft S., Toledo-Moreo R., Torradeflot F., Tutusaus I., Valenziano L., Valiviita J., Vassallo T., Verdoes Kleijn G., Veropalumbo A., Wang Y., Weller J., Zucca E., Huertas-Company M., Scottez V.   +167 more
doaj   +1 more source

VLT/MUSE Study of Close Active Galactic Nucleus Pairs and Host Galaxies in the Local Universe. I. Overview of the Ionized Gas

The Astrophysical Journal Supplement Series
Studying active galactic nucleus (AGN) pairs and their host galaxies is essential for understanding the interplay between galaxy mergers and key internal processes such as supermassive black hole fueling and feedback.
Xiaoyu Xu, Zhiyuan Li, Meicun Hou, Junfeng Wang, Fuyan Bian, Yan-Mei Chen   +5 more
doaj   +1 more source

Declining rotation curves in interacting galaxies [PDF]

, 1993
A declining rotation curve was recently found for the galaxy NGC 3521 by HI synthesis telescope observations (Casertano and van Gorkom 1991). From a comparison of the shapes of rotation curves for a larger sample of galaxies Casertano and van Gorkom ...
Dettmar, Ralf-Juergen, Skiff, Brian A.
core  

Connecting interacting galaxies with manifolds

, 2016
It is well known that the interaction between two disk galaxies generates tidal spiral arms and a connection in the form of a bridge. Here we address the question of the formation of tidal arms and bridges from a dynamical point of view.
M. Romero-Gomez, E. Athanassoula
core   +1 more source

Reduction of the Bar Fraction in Paired Galaxies in the SDSS

The Astrophysical Journal
We investigate the bar fraction in galaxy pairs from the Sloan Digital Sky Survey to assess how galaxy interactions affect bar structures. Compared to isolated galaxies, close pairs exhibit a significantly reduced bar fraction at projected separations ...
Linlin Li, Shuai Feng, Shiyin Shen, Qi’an Deng, Ying Zu, Wenyuan Cui   +5 more
doaj   +1 more source

Studying the spatially resolved Schmidt-Kennicutt law in interacting galaxies: the case of Arp 158 [PDF]

, 2011
Recent studies have shown that star formation in mergers does not seem to follow the same Schmidt-Kennicutt (KS) relation as in spiral disks, presenting a higher star formation rate (SFR) for a given gas column density. In this paper we study why and how
M. Boquien, U. Lisenfeld, P. Duc, J. Braine, F. Bournaud, E. Brinks, V. Charmandaris   +6 more
semanticscholar   +1 more source

Comparative internal kinematics of the H II regions in interacting and isolated galaxies : implications for massive star formation modes [PDF]

, 2015
We have observed 12 interacting galaxy pairs using the Fabry-Perot interferometer GH αFaS (GalaxyHα Fabry-Perot system) on the 4.2-mWilliam Herschel Telescope at theObservatorio del Roque de los Muchachos, La Palma.
J. Zaragoza-Cardiel, J. Beckman, J. Font, B. García-Lorenzo, A. Camps-Fariña, K. Fathi, P. James, S. Erroz-Ferrer, J. Barrera-Ballesteros, M. Cisternas   +9 more
semanticscholar   +1 more source

Paired and Interacting Galaxies: International Astronomical Union Colloquium No. 124 [PDF]

, 1990
The proceedings of the International Astronomical Union Colloquium No. 124, held at the University of Alabama at Tuscaloosa, on December 4 to 7, are given.
Keel, William C., Telesco, C. M., Sulentic, Jack W.   +2 more
core