Results 111 to 120 of about 10,243 (231)

The Origin Of Dwarf Spheroidal Galaxies [PDF]

Symposium - International Astronomical Union, 1983
Two dwarf spheroidal galaxies are associated with the Magellanic Stream with their major axes oriented along it. Evidence suggests that all the dwarf spheroidal satellites of the Galaxy belong to one or other of two streams of tidal debris. If this is true the orbits will give the first reliable determination of the total mass of the Galaxy out to 120 ...
openaire   +1 more source

Satellite Dwarf Galaxies in a Hierarchical Universe: The Prevalence of Dwarf-Dwarf Major Mergers [PDF]

, 2014
Mergers are a common phenomenon in hierarchical structure formation, especially for massive galaxies and clusters, but their importance for dwarf galaxies in the Local Group remains poorly understood. We investigate the frequency of major mergers between
Garrison-Kimmel, Shea, Wetzel, Andrew, Deason, Alis, Garrison-Kimmel, S., Wetzel, A., Deason, A.   +5 more
core   +1 more source

Euclid Quick Data Release (Q1)

Astronomy & Astrophysics
The Euclid Q1 fields were selected for calibration purposes in cosmology and are therefore relatively devoid of nearby galaxies. However, this is precisely what makes them interesting fields in which to search for dwarf galaxies in local density ...
Marleau F. R., Habas R., Carollo D., Tortora C., Duc P.-A., Sola E., Saifollahi T., Fügenschuh M., Walmsley M., Zöller R., Ferré-Mateu A., Cantiello M., Urbano M., Saremi E., Ragusa R., Laureijs R., Hilker M., Müller O., Poulain M., Peletier R. F., Sprenger S. J., Marchal O., Aghanim N., Altieri B., Amara A., Andreon S., Auricchio N., Aussel H., Baccigalupi C., Baldi M., Balestra A., Bardelli S., Basset A., Battaglia P., Bender R., Biviano A., Bonchi A., Bonino D., Branchini E., Brescia M., Brinchmann J., Camera S., Cañas-Herrera G., Capobianco V., Carbone C., Carretero J., Casas S., Castellano M., Castignani G., Cavuoti S., Chambers K. C., Cimatti A., Colodro-Conde C., Congedo G., Conselice C. J., Conversi L., Copin Y., Corcione L., Courbin F., Courtois H. M., Cropper M., Cuillandre J.-C., Da Silva A., Degaudenzi H., De Lucia G., Di Giorgio A. M., Dolding C., Dole H., Dubath F., Dupac X., Dusini S., Escoffier S., Fabricius M., Farina M., Faustini F., Ferriol S., Fosalba P., Fotopoulou S., Frailis M., Franceschi E., Franzetti P., Fumana M., Galeotta S., George K., Gillis B., Giocoli C., Granett B. R., Grazian A., Grupp F., Gwyn S., Haugan S. V. H., Hoar J., Hoekstra H., Holmes W., Hormuth F., Hornstrup A., Hudelot P., Jahnke K., Jhabvala M., Joachimi B., Keihänen E., Kermiche S., Kiessling A., Kubik B., Kümmel M., Kunz M., Kurki-Suonio H., Lahav O., Le Boulc’h Q., Le Brun A. M. C., Le Mignant D., Ligori S., Lilje P. B., Lindholm V., Lloro I., Mainetti G., Maino D., Maiorano E., Mansutti O., Marcin S., Marggraf O., Martinelli M., Martinet N., Marulli F., Massey R., Maurogordato S., McCracken H. J., Medinaceli E., Mei S., Melchior M., Mellier Y., Meneghetti M., Merlin E., Meylan G., Mora A., Moresco M., Moscardini L., Nakajima R., Neissner C., Niemi S.-M., Nightingale J. W., 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., Rebolo R., Renzi A., Rhodes J., Riccio G., Romelli E., Roncarelli M., Rossetti E., Rusholme B., Saglia R., Sakr Z., Sánchez A. G., Sapone D., Sartoris B., Sauvage M., Schewtschenko J. A., Schirmer M., Schneider P., Scodeggio M., Secroun A., Seidel G., Seiffert M., Serrano S., Simon P., Sirignano C., Sirri G., Skottfelt J., Stanco L., Steinwagner J., Tallada-Crespí P., Tavagnacco D., Taylor A. N., Teplitz H. I., Tereno I., Toft S., Toledo-Moreo R., Torradeflot F., Tutusaus I., Valenziano L., Valiviita J., Vassallo T., Verdoes Kleijn G., Veropalumbo A., Wang Y., Weller J., Zacchei A., Zamorani G., Zerbi F. M., Zucca E., Ballardini M., Bolzonella M., Burigana C., Cabanac R., Cappi A., Di Ferdinando D., Escartin Vigo J. A., Gabarra L., Huertas-Company M., Martín-Fleitas J., Matthew S., Mauri N., Metcalf R. B., Pöntinen M., Scottez V., Sereno M., Tenti M., Viel M., Wiesmann M., Akrami Y., Andika I. T., Anselmi S., Archidiacono M., Atrio-Barandela F., Bertacca D., Bethermin M., Blanchard A., Borgani S., Brown M. L., Bruton S., Buitrago F., Calabro A., Camacho Quevedo B., Caro F., Carvalho C. S., Castro T., Cogato F., Conseil S., Cooray A. R., Davini S., De Paolis F., Desprez G., Díaz-Sánchez A., Di Domizio S., Diego J. M., Dimauro P., Enia A., Franco A., Ganga K., García-Bellido J., Gasparetto T., Gaztanaga E., Gianotti F., Gozaliasl G., Guidi M., Gutierrez C. M., Hall A., Hernández-Monteagudo C., Hildebrandt H., Kajava J. J. E., Kang Y., Kansal V., Karagiannis D., Kiiveri K., Kirkpatrick C. C., Kruk S., Legrand L., Lepori F., Leroy G., Lesci G. F., Lesgourgues J., Liaudat T. I., Liu S. J., Macias-Perez J., Mannucci F., Maoli R., Martins C. J. A. P., Maurin L., Miluzio M., Monaco P., Moretti C., Morgante G., Navarro-Alsina A., Nicastro L., Paterson K., Patrizii L., Potter D., Quai S., Radovich M., Rocci P.-F., Sacquegna S., Sahlén M., Sanders D. B., Sarpa E., Schultheis M., Sciotti D., Sellentin E., Tanidis K., Tao C., Testera G., Teyssier R., Tosi S., Troja A., Tucci M., Venhola A., Vergani D., Verza G., Scott D.   +308 more
doaj   +1 more source

Simulating molecular cloud regulated star formation in Galaxies [PDF]

, 2007
This thesis is primarily concerned with understanding the process of galaxy formation via the simulation of the interstellar medium, star formation and supernova feedback.
Booth, Craig Martin
core  

Towards AMR Simulations of Galaxy Formation [PDF]

, 2010
Numerical simulations present a fundamental building block of our modern theoretical understanding of the Universe. As such the work in this thesis is primarily concerned with understanding fundamental differences that lie between the different ...
MITCHELL, NIGEL,LEWIS, Mitchell, Nigel Lewis   +1 more
core  

Dwarf Galaxy Number Counts within 25 Mpc: Predictions from Local Group Analogs in TNG50

The Astrophysical Journal
The modern generation of wide-field galaxy surveys, such as LSST, Euclid, and Roman, will enable studies of dwarf galaxies (10 ^6 ≤ M _* / M _⊙ ≤ 10 ^9 ) beyond the Local Group (LG) in unprecedented detail.
Evangela E. Shread, Joanna M. Piotrowska, Daniel R. Weisz, Michael Boylan-Kolchin, Fiona A. Harrison   +4 more
doaj   +1 more source

The influence of the cosmic web on the properties of dwarf galaxies in the Fornax-Eridanus supercluster

Astronomy & Astrophysics
Context. In this paper, we analyse a sample of low surface brightness dwarf galaxies with a mean effective surface brightness of μ̅e,g > 24.2 μ ¯ e , g > 24.2 $ \bar{\mu}_{e,g} > 24.2 $ mag arcsec−2, detected using interpretable ...
Xu X., Ravichandran P., Peletier R. F., Junais, Raj M. A., Awad P., Smith R.   +6 more
doaj   +1 more source

Star clusters in unperturbed spiral galaxies [PDF]

, 2008
Stars do not form in isolation, they form in groups known as star clusters. Star clusters are seen in a wide range of galaxies and environments. Their presence reveals the history of the host galaxy and the processes of its star formation.
Mora, Marcelo D.
core  

Dwarf Galaxies with Radio-excess Active Galactic Nuclei in the Very Large Array Sky Survey

The Astrophysical Journal
We present a systematic search for radio active galactic nuclei (AGNs) in dwarf galaxies using recent observations taken by the Very Large Array Sky Survey (VLASS).
John-Michael Eberhard, Amy E. Reines, Hansung B. Gim, Jeremy Darling, Jenny E. Greene   +4 more
doaj   +1 more source

Searching for nearby diffuse dwarf galaxies in the COSMOS field

Frontiers in Astronomy and Space Sciences
It remains challenging to systematically survey nearby diffuse dwarf galaxies and address the formation mechanism of this population distinguishing from regular ones.
Dong Dong Shi, Xian Zhong Zheng, Zhizheng Pan, Yu Luo, Hongxia Deng, Qunzhi Hua, Xinyu Luo, Qiming Wu   +7 more
doaj   +1 more source