Results 61 to 70 of about 50,118 (265)

Influence of Dynamical Friction on the Unstable Manifolds of Lagrange Points in Barred Galaxies

Astronomische Nachrichten, EarlyView.
ABSTRACT Some time ago the idea has been proposed that rings and spirals in barred galaxies are shaped by the unstable manifolds of the Lagrange points sitting near the ends of the bar. The topic of the present article is an investigation of whether the numerical support for this suggestion can be improved by the inclusion of dynamical friction into ...
Christof Jung
wiley   +1 more source

H i Gas and Star Formation in Major Galaxy Pairs from the FAST All Sky H i Survey (FASHI)

The Astrophysical Journal
Atomic hydrogen (H i ) plays a fundamental role in fueling star formation in galaxies. However, the behavior of H i gas in interacting systems, particularly galaxy pairs, remains elusive.
Shulan Yan, Qingzheng Yu, Taotao Fang, Chuan He, Andrew Ma, Junfeng Wang, C.Kevin Xu, Ming Zhu, Weishan Zhu   +8 more
doaj   +1 more source

Dusty-wind-clear JWST Super-early Galaxies

The Astrophysical Journal Letters, 2023
The JWST discovery of a number of super-early (redshift z > 10) blue galaxies requires these systems to be essentially dust free in spite of their large stellar masses. A possible explanation is that dust is evacuated by radiatively driven outflows.
Fabrizio Fiore, Andrea Ferrara, Manuela Bischetti, Chiara Feruglio, Andrea Travascio   +4 more
doaj   +1 more source

CALIFA : a diameter-selected sample for an integral field spectroscopy galaxy survey [PDF]

, 2014
JMA acknowledges support from the European Research Council Starting Grant (SEDmorph; P.I. V. Wild).We describe and discuss the selection procedure and statistical properties of the galaxy sample used by the Calar Alto Legacy Integral Field Area (CALIFA)
M. M. Roth, Wisotzki, L., S. Zibetti, Trager, S.; id_orcid, Lyubenova, M., J. Falcón-Barroso, Tundo, E., Rosales-Ortega, F., L. Wisotzki, Sanchez, Sébastien, Trager, S., Ziegler, B., Garcia Lorenzo, B., Boselli, A., del Olmo, A., Marquez Perez, I., Jahnke, K., Monreal Ibero, A., H. Flores, A. Castillo Morales, Cortijo, C., F. F. Rosales-Ortega, Mendez Abreu, Jairo, K. Jahnke, Garcia-Benito, R., A. Quirrenbach, B. Garcia Lorenzo, A. Gallazzi, Sánchez Blázquez, Patricia, Iglesias-Paramo, J., Castillo Morales, María África, Marino, R. A., Flores, H., S. Trager, B. Jungwiert, Sanchez-Blazquez, P., Backsmann, N., Marino, Raffaella Anna, I. Márquez Perez, Husemann, B., E. Tundo, Iglesias Páramo, J., J. A. L. Aguerri, J. V. Vilchez, Walcher, C. J., J. Iglesias-Páramo, Méndez Abreu, J., E. Pérez, B. Ziegler, S. Bekeraité, Vílchez, J. V, Jungwiert, B., Vilchez, J. V., A. Pasquali, P. Sanchez-Blazquez, C. Kehrig, Olmo, A. del, J. Masegosa, A. Monreal Ibero, M. A. W. Verheijen, Quirrenbach, A., García Benito, R., Ibero, A. Monreal, Gallazzi, A., Jilkova, L., L. Galbany, D. Mast, Perez, E., Aguerri, J., González Delgado, R. M., Kehrig, C., Pasquali, A., Sanchez, S. F., A. Boselli, Castillo Morales, A., R. Cid Fernandes, G. van de Ven, González-Delgado, R., L. Jilkova, N. Backsmann, C. Catalán-Torrecilla, Falcon-Barroso, J., V. Kalinova, J. Alves, R. García-Benito, Méndez-Abreu, J., Cid Fernandes, R., R. M. González-Delgado, Roth, M., J. Méndez-Abreu, Zibetti, S., Kalinova, V., Rosales-Ortega, F. F., Catalan-Torrecilla, C., Gil de Paz, A., B. Husemann, Falcón Barroso, J., Bland-Hawthorn, J., Verheijen, M., van de Ven, G., Roth, M. M., Catalán Torrecilla, Cristina, Barrera Ballesteros, J., Galbany, L., C. J. Walcher, Alves, J., A. Gil de Paz, M. Lyubenova, K. Spekkens, Rosales Ortega, F. F., A. del Olmo, Mast, D., C. Cortijo, Perez, Emile, Bekeraite, S., Aguerri, J. A. L., Marino, R., J. Bland-Hawthorn, R. A. Marino, Verheijen, M. A. W., Gonzalez-Delgado, R. M., Walcher, C., S. F. Sánchez, Spekkens, K., J. Barrera Ballesteros, Vilchez, J., Masegosa, J., Sánchez Blázquez, P., Sánchez, Sebastián F., González Delgado, Rosa M., Márquez, Isabel, García-Benito, Rubén, Cortijo Ferrero, Clara, Mast, Damián, Castillo Morales, África, Masegosa, Josefa, Pérez Jiménez, Enrique, Gil de Paz, Armando   +137 more
core   +2 more sources

aggliu/VR-Galaxies-Viewer: VR-Galaxies-Viewer 0.9

, 2021
A scientific research tool for visualizing galaxy populations. This particular application is focused on E+A galaxies and candidates in four nearby clusters of galaxies. Uses Unity and is targeted for Oculus VR platforms. Incorporates code from https:/
aggliu
core   +1 more source

Direct SMBH Formation Driven by Runaway Stellar Collisions in Globally Unstable Stellar Systems

Astronomische Nachrichten, EarlyView.
ABSTRACT The fueling problem addresses the ultimate fate of the reservoirs of gas and stars driven into the deepest gravitational potential wells of galaxies, thus it may contain the Universe's densest concentrations of gas and stars. This raises a key question: does the infalling material collapse directly into a supermassive black hole, or can it ...
Marcelo C. Vergara, Andrés Escala
wiley   +1 more source

Secondary evolution of galaxies investigated by N-body simulations [PDF]

, 2008
In the ΛCDM cosmology, merging is one of the most important physical processes that drives the formation and evolution of galaxies. In the present work, we use N-body techniques to investigate some of currently open issues related to the formation and ...
Coppola, Giuseppina
core   +1 more source

EBHIS Local Volume Galaxy Hi Survey (LVGHIS)

Astronomische Nachrichten, EarlyView.
ABSTRACT Here, we present the “Local Volume Galaxy Hi Survey” (LVGHIS). It is based on the first data release of the Milky Way portion of the Effelsberg Bonn Hi‐Survey (EBHIS). We homogeneously measured the mass and dynamics of the local volume galaxies within the radial velocity limit of |vLSR|≤600kms−1$$ \mid {v}_{\mathrm{LSR}}\mid \le 600\kern0.6em \
V. A. Schulz, J. Kerp, A. C. Schröder, B. Winkel   +3 more
wiley   +1 more source

Size Growth on Short Timescales of Star-forming Galaxies: Insights from Size Variation with Rest-frame Wavelength with JADES

The Astrophysical Journal
We investigate size variation with rest-frame wavelength for star-forming galaxies based on the second James Webb Space Telescope Advanced Deep Extragalactic Survey data release.
Cheng Jia, Enci Wang, Huiyuan Wang, Hui Li, Yao Yao, Jie Song, Hongxin Zhang, Yu Rong, Yangyao Chen, Haoran Yu, Zeyu Chen, Haixin Li, Chengyu Ma, Xu Kong   +13 more
doaj   +1 more source

MEGADES: MEGARA galaxy disc evolution survey

Astronomy & Astrophysics
We present the ionised gas properties and metallicity gradients of the central area of a sample of 43 galaxies using observations obtained by the MEGADES survey.
Chamorro-Cazorla M., Gil de Paz A., Castillo-Morales A., Camps-Fariña A., Gallego J., Carrasco E., Iglesias-Páramo J., Cedazo R., García-Vargas M. L., Pascual S., Cardiel N., Pérez-Calpena A., Gómez-Álvarez P., Martínez-Delgado I., Catalán-Torrecilla C., Zamorano J.   +15 more
doaj   +1 more source