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We calculate the surface temperature and the resulting brightness of sub-relativistic objects moving through the Solar system due to collisional heating by gas and radiative heating by solar radiation. The thermal emission from objects of…

Earth and Planetary Astrophysics · Physics 2020-07-10 Thiem Hoang , Abraham Loeb

Electrons densities in different locations of our galaxy are obtained in pulsar astronomy by dividing the dispersion measure (DM) by the distance of the pulsar to Earth. The properties of the interstellar plasma are related to its heating.…

High Energy Astrophysical Phenomena · Physics 2023-12-05 Y. Ben-Aryeh

The local detection rate of interstellar objects can allow for estimations of the total number of similar objects bound by the Milky Way thin disk. If interstellar objects of artificial origin are discovered, the estimated total number of…

Popular Physics · Physics 2023-04-26 Carson Ezell , Abraham Loeb

Characterization of exoplanets has matured in recent years, particularly through studies of exoplanetary atmospheres of transiting planets at infra-red wavelenegths. The primary source for such observations has been the Spitzer Space…

Earth and Planetary Astrophysics · Physics 2015-05-30 Stephen R. Kane , Dawn M. Gelino

The properties of high latitude dust are of great interest to extragalactic astronomers and cosmologists. It is proposed here that essentially all high Galactic latitude interstellar dust is at a typical temperature of about 20~K (i.e. it…

Astrophysics · Physics 2009-10-28 George F. Smoot

We suggest the all-sky survey at the International Space Station by four little wide-angle telescopes with polarization filters and CCD-arrays spread by several meters one from another. The video information processing will be carried out…

It is generally recognized that the interstellar medium has a vast range of densities and temperatures. While these two properties are usually anticorrelated with each other, there are nevertheless variations in their product, i.e., the…

Astrophysics · Physics 2007-05-23 Edward B. Jenkins , Todd M. Tripp

Stellar occultations have been used to search for Kuiper Belt and Oort Cloud objects. We propose a search for interstellar objects based on the characteristic durations ($\sim 0.1 \mathrm{s}$) of their stellar occultation signals and high…

Earth and Planetary Astrophysics · Physics 2020-03-04 Amir Siraj , Abraham Loeb

In this work we investigate the potential of a thermal infrared (IR) space telescope to remotely characterize the component temperatures of a satellite. With the rapid increase in the number of objects launched in recent years, the ability…

Instrumentation and Methods for Astrophysics · Physics 2025-11-18 Stephen Catsamas , Sarah Caddy , Michele Trenti , Benjamin Metha , Simon Barraclough , Robert Mearns , Airlie Chapman , Rachel Webster

The densities of mid-sized Kuiper belt objects are a key constraint into understanding the assembly of objects in the outer solar system. These objects are critical for understanding the currently unexplained transition from the smallest…

Earth and Planetary Astrophysics · Physics 2017-06-28 Michael E. Brown , Bryan J. Butler

Imaging and spectroscopic observations in the mid-infrared wavelength range (5$\mu$m--30$\mu$m) offer valuable insight into the origins of stars and planets. Sensitive new array detectors on 8-meter class telescopes make it possible to…

Astrophysics · Physics 2009-11-07 Ray Jayawardhana

Existing and planned optical telescopes and surveys can detect artificially-illuminated objects comparable in total brightness to a major terrestrial city out to the outskirts of the Solar System. Orbital parameters of Kuiper belt objects…

Earth and Planetary Astrophysics · Physics 2015-06-03 Abraham Loeb , Edwin L. Turner

Knowledge of the Kuiper Belt is currently limited to those objects that can be detected directly. Objects with diameters less than $\sim$10km reflect too little light to be detected. These smaller bodies could contain most of the mass in…

Astrophysics · Physics 2007-12-11 R. Stevenson

Transiting exoplanets orbiting active stars frequently occult starspots and faculae on the visible stellar disc. Such occultations are often rejected from spectrophotometric transits, as it is assumed they do not contain relevant…

Remote-sensing observations of Solar System objects with a space telescope offer a key method of understanding celestial bodies and contributing to planetary formation and evolution theories. The capabilities of Twinkle, a space telescope…

Earth and Planetary Astrophysics · Physics 2019-03-26 Billy Edwards , Giorgio Savini , Giovanna Tinetti , Marcell Tessenyi , Claudio Arena , Sean Lindsay , Neil Bowles

Dust grains in the interstellar medium interact with photons across the electromagnetic spectrum. They are generally photon energy converters, absorbing short wavelength radiation and emitting long wavelength radiation. Sixty years ago in…

Astrophysics of Galaxies · Physics 2026-01-19 Yancy L. Shirley , Jeffrey G. Mangum , Desika Narayanan , James Di Francesco

Arcuate infrared nebulae are ubiquitous throughout the Galactic Plane and are candidates for partial shells, bubbles, or bowshocks produced by massive runaway stars. We tabulate infrared photometry for 709 such objects using images from the…

The previous decade saw the discovery of the first four known interstellar objects due to advances in astronomical viewing equipment. Future sky surveys with greater sensitivity will allow for more frequent detections of such objects,…

Instrumentation and Methods for Astrophysics · Physics 2023-03-28 Carson Ezell , Abraham Loeb

We demonstrate the ability of existing and planned telescopes, on the ground and in space, to directly image tidally heated exomoons orbiting gas-giant exoplanets. Tidally heated exomoons can plausibly be far more luminous than their host…

Earth and Planetary Astrophysics · Physics 2015-06-11 Mary Anne Peters , Edwin L. Turner
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