Astronomy / Astrophysics

Blogs about Astronomy and Astrophysics

The galaxy cluster MACS J2129-0741 and the galaxy MACS2129-1 (Image NASA, ESA, and S. Toft (University of Copenhagen), M. Postman (STScI), and the CLASH team)

An article published in the journal “Nature” describes a study of the galaxy MACS 2129-1. An international team of researchers led by Sune Toft of the Niels Bohr Institute (NBI), University of Copenhagen, Denmark used the Hubble Space Telescope and ESO’s Very Large Telescope (VLT) to gather information about MACS 2129-1. The result is that no new stars are being formed and this is really surprising because it’s very far away so we see it as it was at a time when the universe was at the highest rate of star production.

Spicules observed and simulated (Image NASA IRIS spectrograph/University of Oslo/SST)

An article published in the magazine “Science” describes a research that provides an explanation of the origins of solar spicules, intermittent plasma jets that propagate from the solar chromosphere to the base of the corona at very high speeds. A team of researchers created computer simulations and compared them with observations made by NASA’s IRIS space probe and the Swedish Solar Telescope in the Canary Islands that confirmed the models’ validity.

FIR 3 (HOPS 370) and FIR 4 (HOPS 108) (Image Credit: Osorio et al., NRAO/AUI/NSF)

An article published in the “Astrophysical Journal” describes a research on a star formation phenomenon in the Orion Molecular Cloud 2. A team of Astronomers led by Mayra Osorio of the Astrophysical Institute of Andalucia (IAA-CSIC) in Spain used the VLA radio telescope to find the evidence that a jet of material ejected by a young star might have triggered the formation of another younger protostar.

The Kepler mission's exoplanet candidates (Image NASA/Ames Research Center/Wendy Stenzel)

At a press conference, NASA presented the new catalog of exoplanet candidates produced thanks to the observations of its Kepler space telescope. Exoplanet candidates are a total of 4,034 of which 2,335 have been confirmed as actually existing. There are 219 new candidates, of which 10 might be similar to Earth and at the same time be in ​​their solar system’s habitable zone.

A pair of stars in their dense core within the Perseus cloud (Image courtesy SCUBA-2 survey image by Sarah Sadavoy, CfA)

An article published in the journal “Monthly Notices of the Royal Astronomical Society” describes a study on the diffusion of binary systems composed of low-mass stars. The astronomers Sarah Sadavoy of the Smithsonian Astrophysical Observatory and Steven Stahler of the University of Berkeley studied very young stars in the molecular cloud of the constellation of Perseus concluding that that kind of stars is always born in pairs, including the Sun.