Results 121 to 130 of about 10,200 (231)
The morphological mix of dwarf galaxies in the nearby Universe
We use a complete, unbiased sample of 257 dwarf (10) galaxies at z < 0.08, in the COSMOS field, to study the morphological mix of the dwarf population in low-density environments.Kaviraj, S., Martin, Garreth, Watkins, Aaron E., Lazar, I., Bichang’a, B., Bichang'a, Brian, Jackson, Ryan A., Watkins, A.E., Martin, G., Lazar, Ilin, Kaviraj, Sugata, Jackson, R.A. +11 morecore +1 more sourceStrong He i Emission Lines in High N/O Galaxies at z ∼ 6 Identified in JWST Spectra: High He/H Abundance Ratios or High Electron Densities?
The Astrophysical JournalWe present He i /H β flux and He/H abundance ratios in three James Webb Space Telescope galaxies with significant constraints on N/O abundance ratios, GS-NDG-9422, RXCJ2248-ID, and GLASS150008 at z ∼ 6 mostly with the spectroscopic coverage from He i λ ...Hiroto Yanagisawa, Masami Ouchi, Kuria Watanabe, Akinori Matsumoto, Kimihiko Nakajima, Hidenobu Yajima, Kentaro Nagamine, Koh Takahashi, Minami Nakane, Nozomu Tominaga, Hiroya Umeda, Hajime Fukushima, Yuichi Harikane, Yuki Isobe, Yoshiaki Ono, Yi Xu, Yechi Zhang +16 moredoaj +1 more sourceEuclid preparation
Astronomy & AstrophysicsLocal Universe dwarf galaxies can serve as both cosmological and mass assembly probes. Deep surveys have enabled the study of these objects down to the low surface brightness (LSB) regime.Urbano M., Duc P.-A., Poulain M., Nucita A. A., Venhola A., Marchal O., Kümmel M., Kong H., Soldano F., Romelli E., Walmsley M., Saifollahi T., Voggel K., Lançon A., Marleau F. R., Sola E., Hunt L. K., Junais J., Carollo D., Sanchez-Alarcon P. M., Baes M., Buitrago F., Cantiello M., Cuillandre J.-C., Domínguez Sánchez H., Ferré-Mateu A., Franco A., Gracia-Carpio J., Habas R., Hilker M., Iodice E., Knapen J. H., Le M. N., Martínez-Delgado D., Müller O., De Paolis F., Papaderos P., Ragusa R., Román J., Saremi E., Testa V., Altieri B., Amendola L., Andreon S., Auricchio N., Baccigalupi C., Baldi M., Bardelli S., Battaglia P., Biviano A., Branchini E., Brescia M., Camera S., Cañas-Herrera G., Capobianco V., Carbone C., Carretero J., Casas S., Castellano M., Castignani G., Cavuoti S., Cimatti A., Colodro-Conde C., Congedo G., Conselice C. J., Conversi L., Copin Y., Courbin F., Courtois H. M., Cropper M., Da Silva A., Degaudenzi H., De Lucia G., Dole H., Dubath F., Duncan C. A. J., Dupac X., Dusini S., Escoffier S., Farina M., Farinelli R., Ferriol S., Finelli F., Frailis M., Franceschi E., Fumana M., Galeotta S., George K., Gillis B., Giocoli C., Grazian A., Grupp F., Guzzo L., Haugan S. V. H., Holmes W., Hook I. M., Hormuth F., Hornstrup A., Jahnke K., Jhabvala M., Joachimi B., Keihänen E., Kermiche S., Kiessling A., Kubik B., Kunz M., Kurki-Suonio H., Laureijs R., 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., Niemi S.-M., Padilla C., Paltani S., Pasian F., Pedersen K., Pettorino V., Pires S., Polenta G., Poncet M., Popa L. A., Pozzetti L., Raison F., Rebolo R., Renzi A., Rhodes J., Riccio G., Roncarelli M., Saglia R., Sakr Z., Sapone D., Sartoris B., Schneider P., Schrabback T., Secroun A., Seidel G., Serrano S., Simon P., Sirignano C., Sirri G., Stanco L., Starck J.-L., Steinwagner J., Tallada-Crespí P., Taylor A. N., Teplitz H. I., 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., Zamorani G., Zinchenko I. A., Zucca E., Ballardini M., Bolzonella M., Bozzo E., 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., Pezzotta A., Pöntinen M., Porciani C., Risso I., 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., Blot L., Bonici M., Borgani S., Brown M. L., Bruton S., Calabro A., Camacho Quevedo B., Caro F., Carvalho C. S., Castro T., Cogato F., Conseil S., Cooray A. R., Cucciati O., Davini S., Desprez G., Díaz-Sánchez A., Diaz J. J., Di Domizio S., Diego J. M., Elkhashab M. Y., Enia A., Fang Y., Ferrari A. G., Finoguenov A., Ganga K., García-Bellido J., Gasparetto T., Gautard V., Gaztanaga E., Giacomini F., Gianotti F., Gozaliasl G., Guidi M., Gutierrez C. M., Hall A., Hildebrandt H., Hjorth J., Kajava J. J. E., Kang Y., Kansal V., Karagiannis D., Kiiveri K., Kim J., Kirkpatrick C. C., Kruk S., Le Graet J., Legrand L., Lembo M., Lepori F., Leroy G., Lesci G. F., Lesgourgues J., Leuzzi L., Liaudat T. I., Loureiro A., Macias-Perez J., Maggio G., Magliocchetti M., Mannucci F., Maoli R., Martins C. J. A. P., Maurin L., Miluzio M., Monaco P., Moretti C., Morgante G., Naidoo K., Navarro-Alsina A., Nesseris S., Paoletti D., Passalacqua F., Paterson K., Patrizii L., Pisani A., Potter D., Quai S., Radovich M., Rodighiero G., Sacquegna S., Sahlén M., Sanders D. B., Sarpa E., Schneider A., Sciotti D., Sellentin E., Smith L. C., Sorce J. G., Tanidis K., Tao C., Testera G., Teyssier R., Tosi S., Troja A., Tucci M., Valieri C., Vergani D., Verza G., Vielzeuf P., Walton N. A. +314 moredoaj +1 more sourceMolecular hydrogen as dark mass in dwarf galaxies
, 2004 We report here an example of a series of computer simulations of the formation of disk galaxies, including a standard cold dark matter component, gas, and star formation, which result in objects which closely resemble observed giant galaxies, with a ...Nelson, AH, Ryder, SD, Myers, S, Freeman, KC, Pisano, DJ, Marzok, C, Williams, PR, Walker, MA +7 morecore Dwarf Galaxies in Nearby Groups of Galaxies
, 2011 We have confirmed 19 new dwarf members in five nearby (z ≤ 0.014) groups of galaxies, measured their photometric characteristics and compared the photometric scaling relations of the late-type dwarf galaxies in the field, group and cluster environments ...J. Vennik, U. Hoppcore +1 more sourceSmall-scale cosmology with dwarf galaxies [PDF]
, 2018 The universe has spawned millions of galaxies – from the largest elliptical galaxies containing billions of stars, to the smallest dwarf galaxies with only a few thousands of stars, just bright enough to not drown in the sea of atmospheric light.Müller, Olivercore +1 more sourceFeedback in dwarf galaxies
, 2012 Stellar feedback processes have been suggested as a mechanism for explaining various properties of galaxies, especially dwarf galaxies, which have weaker potentials and thus lower escape velocities for galactic winds.Slyz, Adrianne, Geen, Samuel Thomascore +1 more source
