Sentences with phrase «of observational astronomers»

Not exact matches

«Massive fails» like this one in a nearby galaxy could explain why astronomers rarely see supernovae from the most massive stars, said Christopher Kochanek, professor of astronomy at The Ohio State University and the Ohio Eminent Scholar in Observational Cosmology.

Much more solid evidence for dark matter came from Vera Rubin, an observational astronomer, who in the late 1960s and early 1970s made detailed quantitative measurements of stars rotating in galaxies.

«It really is excellent work — I believe this is the smallest parallax ever obtained, and it is certainly a milestone in modern observational astronomy,» says Mareki Honma, an astronomer at the National Astronomical Observatory of Japan.

And if observational astronomers were able to identify a few dozen of the sun's relatives, Portegies Zwart says, it would bring a sea change in our understanding of how the solar system formed and evolved.

The Search for Extraterrestrial Radio Emissions from Nearby Developed Intelligent Populations (SERENDIP) has scanned billions of radio sources in the Milky Way by piggybacking receivers on antennas in use by observational astronomers, including Arecibo.

When re-analysing catalogued and updated observational data of brown dwarfs in the solar neighbourhood, astronomers from Potsdam have found that a significant number of nearby brown dwarfs should still be out there, awaiting their discovery.

Now, however, two astronomers from the Complutense University of Madrid have applied a new technique, less exposed to observational bias, to study a special type of trans - Neptunian objects: the extreme ones (ETNOs, located at average distances greater than 150 AU and that never cross Neptune's orbit).

This idea might prompt astronomers to reconsider the previous interpretation of observational data.

So thirsty are theorists for new insights into black holes and relativistic processes that, with each LIGO detection, observational astronomers have leapt into action to target those enormous patches of sky, hoping to see some afterglow or other emission of electromagnetic radiation — even though by definition the resulting larger black hole should emit no light.

An observational astronomer by training, he has observed on some of the world's largest telescopes.

In a 2013 observational study, University of Wisconsin - Madison astronomer Amy Barger and her then - student Ryan Keenan showed that our galaxy, in the context of the large - scale structure of the universe, resides in an enormous void — a region of space containing far fewer galaxies, stars and planets than expected.

British and Spanish astronomers have obtained the first observational evidence that galaxies are oriented not randomly, but in a pattern that accords with the web of dark matter that surrounds them.

Someday in the coming years, if astronomers finally succeed in locating a virtual Earth twin outside the solar system — a tiny dot of a world at a temperate, life - enabling distance from a sunlike star — the achievement will hardly be cause for resting on observational laurels.

Theorists and observational astronomers are hot on the trail of dark matter, the invisible material thought to account for puzzling mass disparities in large - scale astronomical structures.

By combining observational data from OGLE and Hubble, astronomers have been able to work out the nature of the star system, which is located around 8,000 light - years away, to great precision The star system consists of two red dwarfs orbiting one another only 7 million miles apart (as a comparison, this is only 14 times the Earth - moon distance).

Despite these observational challenges, astronomers have successfully spotted many thousands of such microlensing events as part of various comprehensive deep - sky surveys during the last couple decades which have monitored hundreds of millions of stars for many years at a time, like the MACHO Collaboration project, the Microlensing Observations in Astrophysics, or MOA, and the Optical Gravitational Lensing Experiment, or OGLE.

«This is the first direct observational evidence where we can see the effect of the black hole on the star formation history of the galaxy,» co-author Jean Brodie, an astronomer at the University of California, Santa Cruz, said in a press release.

I am an observational astronomer who uses both ground - and space - based observatories to study the formation and evolution of extrasolar planets, brown dwarfs, and low - mass stars.

Observational astronomers design and carry out observing programs with a telescope or spacecraft to answer a question or test the predictions of theories.

Dr. Peter V. Foukal is a solar astronomer who has carried out observational and theoretical studies of many aspects of the Sun and solar activity.