Astronomy & Telescopes – Page 2 – My WordPress Site

Example full-resolution Ariel transmission spectrum of the hot-Saturn WASP-39 b simulated at Tier 2 precision (black error bars). The underlying atmosphere model assumes chemical equilibrium with a solar C/O ratio (0.54), 10× solar metallicity, and no clouds. The opacity contributions of individual species to the total spectrum are shown with different colours and represent the major chemical species with significant opacity in the Ariel wavelength range. The wavebands of Ariel’s instruments are labelled underneath the spectrum. -- astro-ph.EP

Ariel Mission, Astronomy & Telescopes, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Habitable Zones, Imaging & Spectroscopy

On The Information Content of Ariel Transmission Spectra: Reassessing The Tier System

by Keith CowingApril 10, 2026April 10, 2026

The Paranal solar ESPRESSO Telescope (PoET)

Astronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy

First Light For PoET: Shining (sun)Light On Exoplanet Research

by Keith CowingApril 9, 2026April 9, 2026

Skyler Palatnick Holding experimental optics - UCSB

Astronomy & Telescopes, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Nanotechnology & SynBio

Designing Lightweight Optics To Detect Signs Of Life Beyond Our Solar System

by Keith CowingApril 9, 2026April 9, 2026

Detrended QLP light curves

Astronomy & Telescopes, Biosignatures & Paleobiology, Intelligence & Language, SETI & Technosignatures

A TESS Test of the Hybrid Ring Strategy for Technosignature Searches Using GRB 221009A

by Keith CowingApril 9, 2026April 9, 2026

The transit fitting results for KOI-1300.01. The upper right panel shows the phase-folded and contamination-corrected transit lightcurve for the planet’s circumprimary case. The gray circles are the normalized and contamination corrected flux values. The blue squares are the normalized flux values obtained from binning 800 data points at a time. The red line is the model fit to the data. The lower right panel shows the same information for the circumsecondary case. The upper left panels shows the corner plots from the MCMC sampling in the circumprimary case. The lower left shows the corner plots for the circumsecondary case. -- astro-ph.EP

Astronomy & Telescopes, Exoplanets, -moons, -comets, Stellar Cartography

Determining the Host Stars of Planets in Binary Star Systems with Asterodensity Profiling: Investigating the Canonical Radius Gap

by Keith CowingApril 9, 2026April 9, 2026

The left plots show the results of our injection and recovery test into our JWST observation of TOI 700 d, and the right for e.

Analog Studies, Astronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Stellar Cartography

The JWST Search For Earth-Luna Analogs: Upper Limits On Exomoons And Refined Ephemerides For TOI 700 d And e

by Keith CowingApril 8, 2026April 8, 2026

Graphical Abstract -- ACS Central Science

Astrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Icy Worlds, Imaging & Spectroscopy, Interstellar

Nonequilibrium Synthesis of Glycolamide (NH2COCH2OH), a Precursor to Amino Acids, on Interstellar Nanoparticles

by Keith CowingApril 8, 2026April 8, 2026

Evolution of the semimajor axis of a 0.5 M⊕ planet in planetesimal disks with masses of 20 M⊕ (top panel) and 40 M⊕ (bottom panel). The same curves are also shown in a zoomed-in view over the time interval 0–0.5 Myr. -- astro-ph.EP

Astrochemistry, Astrogeology, Astronomy & Telescopes, Exoplanets, -moons, -comets

Study Of The Migration Of Earth-like Planets In Planetesimal Disks And The Formation Of Debris Disks

by Keith CowingApril 8, 2026April 8, 2026

Sky plot of nine cPIC targets that are present in all stellar reference samples. Their PIC names are indicated with labels. -- astro-ph.IM

Astronomy & Telescopes, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Missions & Hardware

Planet Finder PLATO Input Catalogs For Technical Calibration And Fine Guidance

by Keith CowingApril 6, 2026April 6, 2026

Artist’s conception of the gas giant planet TOI-5205 b orbiting a small, cool red dwarf star. Image courtesy of Katherine Cain, Carnegie Science.

Astronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Gas Giants, Imaging & Spectroscopy

Giant Planet TOI-5205 b Orbits A Small Red Star

by Keith CowingApril 6, 2026April 6, 2026