Results 71 to 80 of about 832,537 (179)

Kelvin–Helmholtz Instability and Energetic Neutral Atoms in the Heliosphere

The Astrophysical Journal Letters
The Interstellar Mapping and Acceleration Probe (IMAP) mission launched from Earth on 2025 September 24, beginning its commissioning phase as the spacecraft makes its way to Lagrange Point 1.
E. J. Zirnstein, F. Fraternale, N. V. Pogorelov, R. K. Bera   +3 more
doaj   +1 more source

Interrelationships between interstellar and interplanetary grains [PDF]

, 1986
The relationship between solar system dust (SSD) and interstellar dust particles (ISMD) is being reconsidered because of the discovery of isotopic anomalies in meteorites.
Clayton, D. D.
core  

Blue Luminescence from N-doped Graphene

The Astrophysical Journal
Blue luminescence (BL) has been observed in various astrophysical environments, such as the inner region of the Red Rectangle Nebula. It has been previously linked to small polycyclic aromatic hydrocarbons.
Shu-Yu Lin, Sheng-Lung Chou, Tzu-Ping Huang, Meng-Yeh Lin, Hui-Fen Chen, Peter J. Sarre, Chien-Ming Tseng, Yu-Jong Wu   +7 more
doaj   +1 more source

Leonessa: An Extremely Metal-poor Galaxy Undergoing Secular Chemical Evolution

The Astrophysical Journal
Extremely metal-poor (XMP) galaxies are systems with gas-phase oxygen abundances below ∼5% solar metallicity (12+log(O/H) ≤ 7.35). These galaxies populate the metal-poor end of the mass–metallicity and luminosity–metallicity relations (MZR and LZR ...
Joseph A. Breneman, Kristen B. W. McQuinn, Alexander Menchaca, Danielle A. Berg, O. Grace Telford, Max J. B. Newman, Andrew Dolphin, Gregory R. Zeimann   +7 more
doaj   +1 more source

Observability of Isolated Stellar-mass Black Holes

The Astrophysical Journal Letters
Stellar-mass black holes (BHs) represent the natural end states of massive stars. It is estimated that 10 ^8 stellar-mass BHs are present in the Milky Way galaxy, a significant fraction of which are expected to be isolated.
Lena Murchikova, Kailash C. Sahu
doaj   +1 more source

Analysis of Polarized Dust Emission Using Data from the First Flight of SPIDER

The Astrophysical Journal
Using data from the first flight of Spider and from the Planck High Frequency Instrument, we probe the properties of polarized emission from interstellar dust in the Spider observing region.
P. A. R. Ade, M. Amiri, S. J. Benton, A. S. Bergman, R. Bihary, J. J. Bock, J. R. Bond, J. A. Bonetti, S. A. Bryan, H. C. Chiang, C. R. Contaldi, O. Doré, A. J. Duivenvoorden, H. K. Eriksen, J. P. Filippini, A. A. Fraisse, K. Freese, M. Galloway, A. E. Gambrel, N. N. Gandilo, K. Ganga, S. Gourapura, R. Gualtieri, J. E. Gudmundsson, M. Halpern, J. Hartley, M. Hasselfield, G. Hilton, W. Holmes, V. V. Hristov, Z. Huang, K. D. Irwin, W. C. Jones, A. Karakci, C. L. Kuo, Z. D. Kermish, J. S.-Y. Leung, S. Li, D. S. Y. Mak, P. V. Mason, K. Megerian, L. Moncelsi, T. A. Morford, J. M. Nagy, C. B. Netterfield, M. Nolta, R. O’Brient, B. Osherson, I. L. Padilla, B. Racine, A. S. Rahlin, C. Reintsema, J. E. Ruhl, M. C. Runyan, T. M. Ruud, J. A. Shariff, E. C. Shaw, C. Shiu, J. D. Soler, X. Song, A. Trangsrud, C. Tucker, R. S. Tucker, A. D. Turner, J. F. van der List, A. C. Weber, I. K. Wehus, D. V. Wiebe, E. Y. Young, Spider Collaboration   +69 more
doaj   +1 more source

Interstellar Seminar course introduces college students to interstellar studies

Newsletter article in issue 30 of Have Starship, Will Travel, the newsletter of the Interstellar Research Group. It's also called IRG Newsletter.Newsletter archive: https://irg.space/newsletters-have-starship-will ...
Schneegurt, Mark A.
core   +1 more source

Atomic and Molecular Gas in the Milky Way. I. Structure Decomposition

The Astrophysical Journal
We present GDCluster, a fully automated algorithm for decomposing a spectral-line data cube of interstellar gas into coherent structures. Assuming a multi-Gaussian nature of observed spectra, GDCluster employs and augments the derivative spectroscopy ...
Xin Liu, Fujun Du
doaj   +1 more source

Separation of the Interstellar Boundary Explorer ribbon from globally distributed energetic neutral atom flux

, 2011
The Interstellar Boundary Explorer (IBEX) observes a remarkable feature, the IBEX ribbon, which has energetic neutral atom (ENA) flux over a narrow region similar to 20 degrees.
Schwadron, Nathan A., Janzen, P., Goodrich, K., Funsten, H. O., Allegrini, F., DeMajistre, R., Bzowski, M., Dayeh, M., Kucharek, Harald A., Fuselier, S. A., Gruntman, M., Crew, G. B., Frisch, P., Moebius, Eberhard, Christian, E. R.   +14 more
core   +2 more sources

Cassiopeia A’s Reverse Shock and Its Effects on the Expanding SN Ejecta

The Astrophysical Journal Supplement Series
Using optical and near-infrared images of the Cassiopeia A (Cas A) supernova remnant covering the time period 1951–2022, together with optical spectra of selected filaments, we present an investigation of Cas A’s reverse shock velocity and the effects it
Robert A. Fesen, Dan Milisavljevic, Daniel Patnaude, Roger A. Chevalier, John C. Raymond, McKinley Brumback, Kathryn E. Weil   +6 more
doaj   +1 more source