This is a very neat result: using ALMA, a team surveyed 39 massive cosmic clouds, or "star nurseries”… and found in the order of ~stellar seeds… and 99% of them lacked the mass to give birth to massive stars. It seems that core density might be more critical than mass for high-mass star formation.

https://almaobservatory.org/en/press-releases/alma-unlocks-secrets-of-the-universe-revealing-the-hidden-seeds-of-giant-stars/

#ALMA #AlmaObservatory #ProtoStars #MolecularClouds #MolecularCloudCores #StarFormation #InfraredDarkClouds #IDC #IDCs

Deuterium enriched water ties planet forming disks to #comets and #protostars: https://www.eso.org/public/archives/releases/sciencepapers/eso2302/eso2302a.pdf -> Astronomers find missing link for water in the #SolarSystem: https://www.eso.org/public/news/eso2302/

High-resolution #ALMA observations of the system IRAS 16293-2422 have revealed localized hot spots in the dusty material of the young stellar system.

These are most likely due to local shocks caused by fast gas motions rather than illumination from the #protostars.

This suggests that heat produced in shocks is an important factor during the early stages of the formation of protostars and the planetary disks around them.

#astronomy
https://www.mpe.mpg.de/7918485/news20221227

Deep Dive Off the Cosmic Cliffs
https://skyandtelescope.org/astronomy-news/deep-dive-cosmic-cliffs/

The James Webb Space Telescope's early-release image of the Cosmic Cliffs is revealing growth spurts in young stars. The post Deep Dive Off the Cosmic Cliffs appeared first on Sky & Telescope .
#Astronomy_&_Observing_News #Stellar_Science #protostars #Star_Formation

#astronomy #stars #protostars #NGC3324 #CosmicCliffs #JWST

An article published in the journal "Monthly Notices of the Royal Astronomical Society" reports a study of the open cluster NGC 3324, part of the Carina Nebula, one of the largest known star nurseries. A team of researchers used observations conducted with the James Webb Space Telescope to specifically study an area on the edge of NGC 3324 nicknamed the Cosmic Cliffs.

https://english.tachyonbeam.com/2022/12/20/the-activity-of-protostars-and-newborn-stars-in-the-cosmic-cliffs-studied-by-the-james-webb-space-telescope/

#astronomy #stars #protostars #NGC3324 #CosmicCliffs #JWST

An article published in the journal "Monthly Notices of the Royal Astronomical Society" reports a study of the open cluster NGC 3324, part of the Carina Nebula, one of the largest known star nurseries. A team of researchers used observations conducted with the James Webb Space Telescope to specifically study an area on the edge of NGC 3324 nicknamed the Cosmic Cliffs.

https://english.tachyonbeam.com/2022/12/20/the-activity-of-protostars-and-newborn-stars-in-the-cosmic-cliffs-studied-by-the-james-webb-space-telescope/

The article also features a beautiful image of Orion’s sword made from Spitzer, Herschel and WISE data by the inestimable Robert Hurt. This region is also known as the integral shaped filament and contains the Orion Nebula Cluster. Thanks to Pat Brennan for writing this great article. The goofy quotes are my responsibility. The papers on the protostar outbursts can be found at https://ui.adsabs.harvard.edu/abs/2015ApJ...800L...5S/abstract and https://ui.adsabs.harvard.edu/abs/2022ApJ...924L..23Z/abstract. #protostars, #orion, #spitzer, #herschel, #outbursts, #eruptions.

A cosmic hourglass: Webb captures image of protostar swathed in dark clouds - The protostar L1527 is embedded within a cloud of material that is feeding its gro... - https://arstechnica.com/?p=1898238 #jameswebbspacetelescope #astrophysics #stellarbirth #protostars #astronomy #science #physics #nircam

Now I’m focusing more on individual protostars. Here is a protostar imaged with Hubble in the IR (from an APOD featuring work of @geckzilla). Protostars form from the collapse of cold molecular cloud fragments, this image shows the cavities carved into such a fragment by jets and winds of gas from the protostar. Now, in the Investigating Protostellar Accretion program on JWST, we are obtaining spectral images of five protostars with the NIRSpec and MIRI MRS. (More later). #protostars

Anashe Bandari - Twisted Magnetic Fields Can Reveal How Protobinary Systems, Tatooine Planets Form:

https://blogs.nasa.gov/sofia/2022/09/15/twisted-magnetic-fields-can-reveal-how-protobinary-systems-tatooine-planets-form/

#Tatooine #BinaryStars #Protostars #Protobinaries #TwistedMagneticField #MagneticFields #SOFIA #Telescope #PlanetaryScience #Astronomy

#astronomy #VLA #ALMA #SVS13 An article accepted for publication in "The Astrophysical Journal" reports a study on the binary system cataloged as SVS 13, consisting of two #protostars surrounded by disks of materials that could lead to the formation of planets.

https://english.tachyonbeam.com/2022/03/13/three-disks-orbiting-two-protostars-in-the-svs-13-system/

#astronomy #protostars An article published in the journal "Astronomy and Astrophysics" reports observations of stellar jets cataloged as MHO 2147 and MHO 1502 emitted by two protostellar sources.

https://english.tachyonbeam.com/2022/01/21/a-study-of-the-jets-emitted-by-two-protostellar-sources/

#astronomy #stars #protostars NASA has released an image captured by the #Hubble Space Telescope of the nebula cataloged as G035.20-0.74, a star nursery in the constellation Aquila.

https://english.tachyonbeam.com/2021/11/18/a-nursery-of-massive-stars-in-the-aquila-constellation-observed-by-the-hubble-space-telescope/

#astronomy #protostars #ProtoplanetaryDisks #OrganicMolecules #ALMA An article published in "The Astrophysical Journal" reports a study of organic molecules detected in 50 regions of protoplanetary disk formation in the Perseus Molecular Cloud.
https://english.tachyonbeam.com/2021/04/13/an-analysis-of-the-complex-organic-molecules-found-in-the-perseus-molecular-cloud/

#astronomy #protostars #MolecularClouds #StellarEggs An article published in "The Astrophysical Journal" reports the discovery of four massive molecular clouds in the central area of ​​the Milky Way with traces of star formation in an area that was considered too chaotic for that to happen.
https://english.tachyonbeam.com/2021/04/02/stellar-eggs-formed-even-in-the-chaotic-conditions-near-the-milky-way-center/

#astronomy #protostars #ESO #VLT #SPHERE An article published in "The Astrophysical Journal Letters" reports a research on the very young #star SU Aurigae, or simply SU Aur, and on the protoplanetary disk around it.
https://english.tachyonbeam.com/2021/02/28/the-very-young-star-su-aurigae-has-a-protoplanetary-disk-with-a-tail/

#astronomy #protostars #VLTI An article published in the journal "Nature" reports the results of observations of the very young TW Hydrae system in which for the first time the columns of materials that contribute to the formation of new #stars have been directly observed.
https://english.tachyonbeam.com/2020/09/01/the-accretion-of-the-protostar-tw-hydrae-has-been-observed

#astronomy #protostars Two articles, one published in "The Astrophysical Journal" and one in "The Astrophysical Journal Letters", report a census of what were called stellar embryos in the Taurus Molecular Cloud.
https://english.tachyonbeam.com/2020/08/09/stellar-eggs-discovered-in-the-taurus-molecular-cloud

#astronomy An article published in the journal "Nature Astronomy" reports the first observation of a pair of #protostars in the Perseus molecular cloud fed by a flow of gas and various compounds that formed in the parent cloud.
https://english.tachyonbeam.com/2020/07/31/a-binary-system-in-formation-fed-by-a-flow-of-materials-from-the-parent-cloud

#astronomy An article accepted for publication in "The Astrophysical Journal" reports observations of a pair of #protostars in a system in its formation phase cataloged as IRAS 16293-2422 A.
https://english.tachyonbeam.com/2020/06/14/two-protostars-in-their-first-phase-of-formation-identified-in-the-ophiuchus-molecular-cloud