To explain grain growth and destruction in warm media, ice mantle formation and sublimation in cold media, and gas line emission spectroscopy, astrochemical models must mimic the gas–solid abundance ratio. […]
Interstellar
Posted inAstronomy & Telescopes, Imaging & Spectroscopy, Interstellar, SETI & Technosignatures, Status Report
Search For Gravitationally Lensed Interstellar Transmissions
We consider interstellar light transmission aided by a gravitational lens. We find that optimal reception efficiency occurs in lensing geometries where the transmitter, lens, and receiver are nearly aligned.
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Imaging & Spectroscopy, Interstellar, Status Report
Discovery Of Thionylimide, HNSO, In Space: The First N-, S- and O-bearing Interstellar Molecule
We present the first detection in space of thionylimide (HNSO) toward the Galactic Center molecular cloud G+0.693-0.027, thanks to the superb sensitivity of an ultradeep molecular line survey carried out […]
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Imaging & Spectroscopy, Interstellar, Press Release
ALMA Unlocks The Chemical Secrets Of A Starburst Galaxy
Astronomers observed with the Atacama Large Millimeter/submillimeter Array (ALMA) the center of a relatively nearby galaxy known as NGC 253, which produces stars at a very high rate.
Posted inAstrochemistry, Biochemistry & Organic Chemistry, Biophysics, Imaging & Spectroscopy, Interstellar, Status Report
The Mystery Of Homochirality On Earth
Homochirality is an obvious feature of life on Earth. On the other hand, extraterrestrial samples contain largely racemic compounds. The same is true for any common organic synthesis.
Posted inAstrochemistry, Astronomy & Telescopes, Imaging & Spectroscopy, Interstellar, Press Release, Stellar Cartography
Three-year Study Of Young Stars With Hubble Enters A New Chapter
On the largest and one of the most ambitious Hubble Space Telescope programs ever executed, a team of scientists and engineers collected information on almost 500 stars over a three-year […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Interstellar, Status Report
On The Properties Of Free Floating Planets Originating In Circumbinary Planetary Systems
Free-floating planets are a new class of planets recently discovered. These planets don’t orbit within stellar systems, instead living a nomadic life within the galaxy.
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Imaging & Spectroscopy, Interstellar, Status Report
Rotational Spectrum and First Interstellar Detection of 2-Methoxyethanol Using ALMA Observations of NGC 6334I
We use both chirped-pulse Fourier transform and frequency modulated absorption spectroscopy to study the rotational spectrum of 2-methoxyethanol in several frequency regions ranging from 8.7-500 GHz.
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Imaging & Spectroscopy, Interstellar, Press Release
The Mystery Of The Fullerenes In Space Explained
Fullerenes are carbon molecules which are very big, complex, and highly resistant, Their atoms are organized in three dimensional spherical structures, with a pattern of alternating hexagons and pentagons, shaped […]
![Integrated intensity maps of a selected transition for each O-bearing COM. The upper right panel in each figure shows the spectra toward the center and the filled regions indicate the integration ranges for the zero-order moment maps, which is 3.5 − 10.7 km s−1 , except for CH3OH with 3.5 − 12.0 km s−1 , for the zero-order moment maps. The blue contours in the top-left panel represent the ALMA 1.3 mm continuum emission (Tobin et al. 2018) with levels of [3, 5, 7, 10, 30, 70]-𝜎. The horizontal grey line in the top left panel shows the PV cut used in Figure 7. The blue pixel at the top right panel indicate the pixel that is used to extract the spectra in this work. -- astro-ph.GA](https://i0.wp.com/astrobiology.com/wp-content/uploads/2024/03/PRODIGEEnvelope-To-Disk.png?resize=1200%2C718&ssl=1)
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Imaging & Spectroscopy, Interstellar, Status Report
PRODIGE Envelope To Disk with NOEMA III. The Origin Of Complex Organic Molecule Emission In SVS13A
Complex Organic Molecules (COMs) have been found toward low-mass protostars but the origins of the COM emission are still unclear.