Results 61 to 70 of about 532,071 (203)

Bright galaxy number counts [PDF]

, 1995
The value of a plot of galaxy number counts per unit area of sky against magnitude as a probe of the early universe is well known, being influenced by both the curvature of expanding space and the deceleration parameter.
Marr, J.H.
core  

The TRGB−SBF Project. III. Refining the HST Surface Brightness Fluctuation Distance Scale Calibration with JWST

The Astrophysical Journal
The TRGB−SBF Project team is developing an independent distance ladder using a geometrical calibration of the tip of the red giant branch (TRGB) method in elliptical galaxies that can, in turn, be used to set the surface brightness fluctuation (SBF ...
Joseph B. Jensen, John P. Blakeslee, Michele Cantiello, Mikaela Cowles, Gagandeep S. Anand, R. Brent Tully, Ehsan Kourkchi, Gabriella Raimondo   +7 more
doaj   +1 more source

A low‐cost, portable polarizing digital light microscope for monitoring crystal growth and for crystal harvesting

Journal of Applied Crystallography, EarlyView.
A low‐cost, portable, medium‐resolution polarizing digital light microscope device for monitoring crystal growth and for crystal harvesting is described. The device can be used with a cell phone or a personal computer for real‐time imaging by professional and amateur scientists alike.Motivated by the need for a convenient way to demonstrate the growth ...
Sarah Kennedy, Ryan H. Huang, Wojciech Witek, Pawel Krawinski, Coilín Boland, Linjie Yang, Neal Leddy, Martin Caffrey   +7 more
wiley   +1 more source

A study of radio continuum emission of the Milky Way Galaxy [PDF]

, 1996
The synchrotron emissivity distribution of the Milky Way Galaxy has been modelled from the 408 MHz allsky survey of Haslam et al.(1982) after separation of its thermal component with the help of IRAS 60 micron emission(Broadbent et al 1989).
Sanguansak, Nuanwan
core  

The Momentum of ‘Developed’: Bodies of Water, Aging Bodies and Malta's Interventions at the UN

History, EarlyView.
Abstract Histories of major powers continue to shape how many scholars conceptualize internationalism. By focusing on Malta's interventions at the UN challenges, this article challenges such narrative. In particular, it examines Arvid Pardo's 1967 petition that the seabed be reconceived and protected as the ‘common heritage of mankind’ and Vincent ...
Brianne Wesolowski
wiley   +1 more source

New Measurements of Distances to Galaxies in the NGC 1052 Field with the Hubble and James Webb Space Telescopes: Testing the Bullet-dwarf Origin of the Trail

The Astrophysical Journal Letters
NGC 1052-DF2 and DF4 are two ultradiffuse galaxies deficient in dark matter (DM) and reported as part of a remarkable linear trail of dwarf galaxies in the NGC 1052 field.
Yimeng Tang, Gagandeep S. Anand, Aaron J. Romanowsky, Pieter G. van Dokkum, Kevin A. Bundy   +4 more
doaj   +1 more source

Caught in the web: Galaxy mergers along cosmic filaments

Astronomy & Astrophysics
Context. Galaxy clusters grow through the accretion of galaxies from groups, filaments, and other clusters. During this process, galaxies may undergo pre-processing in lower density environments, where galaxy–galaxy mergers and other interactions can ...
Dulcien Carolina, Jaffé Yara L., Crossett Jacob P., Baier-Soto Raúl, Méndez-Hernández Hugo, Haines Christopher P., Cabrera-Vives Guillermo, Olivares Patricio, Vásquez-Bustos Paulo, Argudo-Fernández Maria, Vivanco Javiera, Bilton Lawrence, Bom Clécio R., D’Ago Giuseppe, Finoguenov Alexis, Kuchner Ulrike, Lima-Dias Ciria, Merluzzi Paola, Monachesi Antonela, Pallero Diego, Tejos Nicolas, Teixeira Gabriel S. M., Sifón Cristóbal, Carvalho Maiara S., Demarco Ricardo, Ibar Eduardo, Montaguth Gissel P., Piraino-Cerda Franco, Rescigno Umberto, Sampaio Vitor, Oliveira Schwarz Gustavo B., Smith Rory, Vulcani Benedetta, Malavasi Nicola   +33 more
doaj   +1 more source

Effect of Salinity Stress on Gut–Brain–Gonad Axis in the Red‐Eared Slider (Trachemys scripta elegans)

Integrative Zoology, EarlyView.
The increase in salinity leads to changes in the gut microbiota and metabolites of Trachemys scripta elegans, affecting the synthesis and secretion of neurotransmitters or precursors, which can inhibit the secretion of reproductive hormones and affect the self‐renewal and differentiation process of spermatogonial stem cells.
Qiongyu Zhang, Na Li, Xue Tang, Hanru Chen, Meiling Hong, Li Ding   +5 more
wiley   +1 more source

Stellar population gradients in galaxy discs from the CALIFA survey : the influence of bars [PDF]

, 2014
We acknowledge financial support from the research projects under grants AYA2010-21887-C04-03, AYA2010-21322-C03-03 and AYA2010-15081 by the Spanish Ministerio de Ciencia e Innovación.While studies of gas-phase metallicity gradients in disc galaxies are ...
Wisotzki, L., S. Zibetti, Márquez, I., D. Mast, Papaderos, P., R. García Benito, Rosales-Ortega, F.F., Sánchez, S. F., I. Pérez, Sánchez, S.F., J. Falcón-Barroso, Ruiz Lara, T., P. Sánchez-Blázquez, R. Cid Fernandes, L. Wisotzki, G. van de Ven, de Lorenzo Cáceres, A., P. Papaderos, C. Catalán-Torrecilla, M. Mollá, González Delgado, R., Mendoza, M. A., Aguerri, J.A.L., F. F. Rosales-Ortega, Mendez Abreu, Jairo, Ruiz-Lara, T., Cid Fernandes, R., A. de Lorenzo-Caceres, J. Méndez-Abreu, Zibetti, S., T. Ruiz-Lara, Mendoza, M.A., Iglesias Paramo, Jorge, B. Husemann, Sánchez Blázquez, Patricia, Falcón Barroso, J., Bland-Hawthorn, J., M. A. Mendoza, B. Jungwiert, Catalán Torrecilla, Cristina, Mollá, M., A. Galazzi, C. J. Walcher, A. Gil de Paz, Rosales Ortega, F. F., Mast, D., Marino, Raffaella Anna, Husemann, B., De Amorim, A., J. A. L. Aguerri, Aguerri, J. A. L., Gil De Paz, Armando, Marino, R.A., J. Bland-Hawthorn, A. de Amorim, Pérez, I., R. A. Marino, Walcher, C. J., Méndez Abreu, J., I. Márquez, Walcher, C.J., Galazzi, A., Iglesias-Páramo, J., Jungwiert, B., S. F. Sánchez, R. González Delgado, De Lorenzo-Caceres Rodriguez, Adriana, Catalán-Torrecilla, C., Gil De Paz, A., Van De Ven, G., Falcón-Barroso, J., García Benito, R., Sánchez-Blázquez, P., Jorge Iglesias-Páramo   +73 more
core   +1 more source

Connecting clustering and the cosmic web

Astronomy & Astrophysics
Context. Cosmological simulations predict significant secondary dependences of halo clustering on a variety of internal halo properties, and on environmental factors.
Rodriguez Facundo, Montero-Dorta Antonio D.   +1 more
doaj   +1 more source