Results 51 to 60 of about 789 (228)

SDSS-IV MaNGA: Spatial Evolution of Gas-phase Metallicity Changes Induced by Galaxy Interactions

The Astrophysical Journal
Gas-phase metallicity in interacting and merging galaxies offers key insights into their star formation processes and evolutionary histories. This study investigates the spatial evolution of gas-phase metallicity (i.e., oxygen abundance, 12 + log(O/H ...
Hsi-An Pan, Lihwai Lin, Sebastián F. Sánchez, Jorge K. Barrera-Ballesteros, Bau-Ching Hsieh   +4 more
doaj   +1 more source

Structural and Morphological Properties of Ultraluminous Infrared Galaxies at 1 < z < 3

Open Astronomy, 2015
Using the Hubble Space Telescope (HST)/Wide Field Camera 3 (WFC3) near-infrared high-resolution imaging from the 3D-HST survey, we analyze the morphology and structure of 502 ultraluminous infrared galaxies (ULIRGs; LIR > 1012L⊙) at 1 < z < 3. Their rest-
Fang Guanwen, Ma Zhongyang, Chen Yang, Kong Xu   +3 more
doaj   +1 more source

The ISM in the z = 6.9 Interacting Galaxies of SPT0311-58

The Astrophysical Journal, 2023
SPT0311-58, a system of two interacting galaxies in the Epoch of Reionization, exists in one of the rarest, most massive dark matter halos theoretically possible in that era.
Katrina C. Litke, Daniel P. Marrone, Manuel Aravena, Melanie Archipley, Matthieu Béthermin, James Burgoyne, Jared Cathey, Scott C. Chapman, Anthony H. Gonzalez, Thomas R. Greve, Gayathri Gururajan, Christopher C. Hayward, Matthew A. Malkan, Kedar A. Phadke, Cassie A. Reuter, Kaja M. Rotermund, Justin S. Spilker, Antony A. Stark, Nikolaus Sulzenauer, Joaquin D. Vieira, David Vizgan, Axel Weiß   +21 more
doaj   +1 more source

Investigation on tunnel stability considering pipe‐roof support with transparent soil technology

Deep Underground Science and Engineering, EarlyView.
This study integrates transparent soil technology, 3D reconstruction and numerical simulation to captures the full‐field deformation of shield tunnel instability. Results demonstrate that pipe‐roof support enhances stability via the “soil‐arching barrier effect,” effectively restraining failure wedge development by extending stress transfer paths ...
Zhi Jia, Yunpeng Ji, Zhao Lu, Honghua Zhao, Limin Zhang   +4 more
wiley   +1 more source

Formation of the Dark Matter–Deficient S0 Galaxy NGC 4111 under the Tidal Interactions

The Astrophysical Journal Letters
We present high-sensitivity and large-scale atomic hydrogen (H i ) observations toward lenticular (S0) galaxy NGC 4111 using the Five-hundred-meter Aperture Spherical Radio Telescope.
Mei Ai, Ming Zhu, Nai-ping Yu, Jin-long Xu, Xiao-lan Liu, Yingjie Jing, Qian Jiao, Yao Liu, Chuan-peng Zhang, Jie Wang, Peng Jiang   +10 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

Galaxy Interactions

, 1998
10 pages, 3 figures; LaTeX source + postscript figures. Invited review at "Galaxy Dynamics", Rutgers University, New Jersey, August 8-12, 1998.
openaire   +2 more sources

Distinguishing ram pressure from gravitational interactions: Applying the size-shape difference method to real galaxies

Astronomy & Astrophysics
Context. In dense environments, mechanisms such as ram pressure stripping (RPS) and gravitational interactions can induce the formation of similar morphological features in galaxies that are only distinguishable through a detailed study of the stellar ...
Lassen Augusto E., Smith Rory, Vulcani Benedetta, Tonnesen Stephanie, Calderón-Castillo Paula, Poggianti Bianca M., Fritz Jacopo, George Koshy, Ignesti Alessandro, Jaffé Yara, Marasco Antonino, Matijević Luka, Moretti Alessia, Radovich Mario, Tomičić Neven   +14 more
doaj   +1 more source

Ragomics‐Meta: An open‐source, scalable, reproducible, and extensible multi‐omics analysis workflow

iMetaOmics, EarlyView.
Ragomics‐Meta is an open‐source, scalable, and reproducible multi‐omics workflow for metabolism‐centered analysis (https://www.raganetwork.com/). It integrates scRNA/snRNA‐seq, spatial transcriptomics, scATAC‐seq, and metabolomics modules to support quality control, dimensionality reduction, clustering, differential expression and accessibility ...
Zeping Gui, Huidong Su, Yuhao Chen, Jixing Yuan, Yexiu Gao, Ze Yu, Jing Zhang, Qingyi Zhu, Min Gu, Mulong Du, Zijie Wang, Ming Chen   +11 more
wiley   +1 more source

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