Zobrazeno 1 - 10
of 117
pro vyhledávání: '"Interdisciplinary Astronomy"'
Publikováno v:
The Planetary Science Journal, Vol 5, Iss 8, p 186 (2024)
Salt clouds are predicted to be common on warm exoplanets, but their optical properties are uncertain. The Exoplanet Cloud Ensemble Scattering System (ExCESS), a new apparatus to measure the scattering intensity and degree of linear polarization for
Externí odkaz:
https://doaj.org/article/2f4ef6c2e7be42e89eb83aae76eeff31
Publikováno v:
The Astrophysical Journal, Vol 971, Iss 2, p 160 (2024)
Panspermia is the hypothesis that life originated on Earth from the bombardment of foreign interstellar ejecta harboring polyextremophile microorganisms. Since the 2017 discovery of the interstellar body ‘Oumuamua (1I/2017 U1) by the Pan-STARRS tel
Externí odkaz:
https://doaj.org/article/c1daba2ed3d049a29bd87aa1b332d827
Autor:
Ryan C. Fortenberry, Brett A. McGuire
Publikováno v:
The Astrophysical Journal, Vol 971, Iss 1, p 101 (2024)
The formation of silicon monosulfide (SiS) in space appears to be a difficult process, but the present work shows that a previously excluded pathway may contribute to its astronomical abundance. Reaction of the radicals SH + SiH produces SiS with a s
Externí odkaz:
https://doaj.org/article/d3a5c677506a4ca181bf4351ba59da00
Publikováno v:
The Astronomical Journal, Vol 168, Iss 2, p 61 (2024)
We propose a modified moment matching algorithm to avoid catastrophic failures for sources with a low signal to noise ratio. The proposed modifications include a method to eliminate nonphysical negative pixel values and a forced single iteration with
Externí odkaz:
https://doaj.org/article/4a3db4e2360443799b03fc99413e569a
Autor:
N. V. Sarlis, G. Livadiotis, D. J. McComas, M. E. Cuesta, L. Y. Khoo, C. M. S. Cohen, D. G. Mitchell, N. A. Schwadron
Publikováno v:
The Astrophysical Journal, Vol 969, Iss 1, p 64 (2024)
We investigate the long-term persistence of solar energetic particle (SEP) time series by means of four different methods: Hurst rescaled range R / S analysis, detrended fluctuation analysis, centered moving average analysis, and the fluctuation of n
Externí odkaz:
https://doaj.org/article/c815afd040ef44d39505d3fa2d18a7bc
Autor:
Linhua Jiang, Zhiwei Pan, Jessica Nicole Aguilar, Steven Ahlen, Robert Blum, David Brooks, Todd Claybaugh, Axel de la Macorra, Arjun Dey, Peter Doel, Kevin Fanning, Simone Ferraro, Jaime E. Forero-Romero, Enrique Gaztañaga, Satya Gontcho A Gontcho, Gaston Gutierrez, Klaus Honscheid, Stephanie Juneau, Martin Landriau, Laurent Le Guillou, Michael Levi, Marc Manera, Ramon Miquel, John Moustakas, Eva-Maria Mueller, Andrea Muñoz-Gutiérrez, Adam Myers, Jundan Nie, Gustavo Niz, Claire Poppett, Francisco Prada, Mehdi Rezaie, Graziano Rossi, Eusebio Sanchez, Edward Schlafly, Michael Schubnell, Hee-Jong Seo, David Sprayberry, Gregory Tarlé, Benjamin Alan Weaver, Hu Zou, The DESI Collaboration
Publikováno v:
The Astrophysical Journal, Vol 968, Iss 2, p 120 (2024)
We present strong constraints on the spacetime variation of the fine-structure constant α using the Dark Energy Spectroscopic Instrument (DESI). In this pilot work, we utilize ∼110,000 galaxies with strong and narrow [O iii ] λ λ 4959, 5007 emis
Externí odkaz:
https://doaj.org/article/65c3ca715f49425e9543e34b7872d607
Autor:
Giulia Murgia, Sofia Fatigoni
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 272, Iss 1, p 10 (2024)
We implement an algorithm based on the weighted stacking of astronomical images that can combine different observations of the same region of the sky removing the interfering signals. We develop a C++ code that takes as input a set of spectral cubes
Externí odkaz:
https://doaj.org/article/11ee45bbd2004e419be915140b12cd60
Publikováno v:
The Astronomical Journal, Vol 167, Iss 4, p 150 (2024)
Astronomy is a discipline primarily reliant on visual data. However, alternative data representation techniques are being explored, in particular “sonification,” namely, the representation of data into sound. While there is increasing interest in
Externí odkaz:
https://doaj.org/article/de2b20df4dfa43a38a368c2497ea314e
Autor:
Danielle de Brito Silva, Paula Jofré, Patricia B. Tissera, Keaghan J. Yaxley, Jenny Gonzalez Jara, Camilla J. L. Eldridge, Emanuel Sillero, Robert M. Yates, Xia Hua, Payel Das, Claudia Aguilera-Gómez, Evelyn J. Johnston, Alvaro Rojas-Arriagada, Robert Foley, Gerard Gilmore
Publikováno v:
The Astrophysical Journal, Vol 962, Iss 2, p 154 (2024)
Phylogenetic methods have long been used in biology and more recently have been extended to other fields—for example, linguistics and technology—to study evolutionary histories. Galaxies also have an evolutionary history and fall within this broa
Externí odkaz:
https://doaj.org/article/af2dead3ab174a87819b8f6a15dfce33