Results 91 to 100 of about 1,351,986 (215)

Technosignature Searches of Interstellar Objects

With the discovery of the third confirmed interstellar object (ISO), 3I/ATLAS, we have entered a new phase in the exploration of these long-predicted objects. Though confirmed discovery of ISOs is quite recent, their utility as targets in the search for technosignatures (historically known as the Search for Extraterrestrial Intelligence -- SETI) has ...
Davenport, James R. A., Sheikh, Sofia Z., Croft, Steve, Lacki, Brian C., Wright, Jason T., Lintott, Chris, Frank, Adam, Lazio, T. Joseph W., Chandler, Colin Orion, Siemion, Andrew P. V., DiKerby, Stephen, White, Ellie, Lopez, Valeria Garcia, Yu, Emma E., Frissell, Maxwell K., Yoachim, Peter, Morato, Naomi, Singh, Devanshi, Zhang, Jinshuo, Seligman, Darryl Z.   +19 more
openaire   +2 more sources

Physical Considerations for an Intercept Mission to a 1I/'Oumuamua-like Interstellar Object [PDF]

, 2022
In this paper, we review some of the extant literature on the study of interstellar objects (ISOs). With the forthcoming Vera C. Rubin Telescope and Legacy Survey of Space and Time (LSST), we find that $0.38 - 84$ `Oumuamua-like interstellar objects are ...
Watters, Wesley, Loeb, Abraham, Siraj, Amir, Cloete, Richard, Laukien, Frank, White, Abigail, Moro-Martin, Amaya, Elowitz, Mark, Melnick, Gary, Grindlay, Jonathan   +9 more
core  

The Inbound Gas and Dust Evolution of Interstellar Comet 3I/ATLAS from Optical Spectroscopy and Multiband Photometry

The Astrophysical Journal
Interstellar objects (ISOs) provide direct constraints on the composition and evolution of extrasolar planetary systems. As the third confirmed ISO, comet 3I/ATLAS offers a rare opportunity to study pristine material from another star system.
T. Santana-Ros, A. Sergeyev, O. Ivanova, S. Mykhailova, J. Markkanen, I. Luk’yanyk, T. Kwiatkowski, D. Oszkiewicz, A. Penttilä, N. Erasmus, K. Ergashev, Y. Krugly   +11 more
doaj   +1 more source

THE SEARCH FOR SS433 OBJECTS: Hα PHOTOMETRY OF BLUE STARS IN M33

Odessa Astronomical Publications, 2017
549 blue stars with Ho; excess in the galaxy M 33 selected as candidates into unique objects of SS 433 and LBV (luminous blue variables) types are studied.
O. N. Sholukhova
doaj   +1 more source

Artificial Broadcasts as Galactic Populations. I. A Point Process Formalism for Extraterrestrial Intelligences and Their Broadcasts

The Astrophysical Journal
Artificial broadcasts from extraterrestrial intelligences are a hypothetical class of celestial phenomena. Unlike known astrophysical objects, the societies that generate them may be able to replicate on galactic scales through interstellar travel ...
Brian C. Lacki
doaj   +1 more source

The interstellar flux gap: From dust to kilometer-scale objects

Context. Three kilometer-sized interstellar objects (ISOs) have been detected transiting the Solar System, and spacecraft have directly measured micrometer-scale interstellar dust (ISD).
D. Z. Seligman, E. Peña-Asensio, Peña-Asensio, Eloy, Seligman, Darryl   +3 more
core   +1 more source

Summer School on Interstellar Processes: Abstracts of contributed papers [PDF]

, 1986
The Summer School on Interstellar Processes was held to discuss the current understanding of the interstellar medium and to analyze the basic physical processes underlying interstellar phenomena.
Hollenbach, D. J., Thronson, H. A., Jr.
core  

Marginally Stable Nuclear Burning Triggered at Different Depths of the Neutron Star Surface in Low-mass X-Ray Binary 4U 1608-52

The Astrophysical Journal
We investigated the timing and spectral properties of the millihertz quasiperiodic oscillations (mHz QPOs) in the neutron star low-mass X-ray binary 4U 1608–52 using NICER observations. Our analysis reveals a correlation between the QPO frequency and its
Ming Lyu, Guobao Zhang, Mariano Méndez, Huaping Xiao   +3 more
doaj   +1 more source

Low-excitation Herbig-Haro objects and interstellar extinction [PDF]

, 1985
Previous work on low-excitation Herbig-Haro (HH) objects has confirmed the existence of a strongly-enhanced hydrogen two-photon continuum which is produced by low-velocity shocks in neutral material.
Schwartz, R. D.
core  

Capture of interstellar objects: a source of long-period comets

, 2020
We simulate the passage through the Sun–Jupiter system of interstellar objects (ISOs) similar to 1I/‘Oumuamua or 2I/Borisov. Capture of such objects is rare and overwhelmingly from low incoming speeds on to orbits akin to those of known long-period ...
Dehnen, W, Hands, T O
core   +1 more source