Sentences with phrase «faint sources»

«Before we had this capability, we could not detect the numerous faint sources that produce much of the background emission,» he added.

«Detecting pulsations in faint sources is challenging, because the X-ray data are not always collected with sufficiently high time - resolution to make the measurement,» he says.

He adds: «Our results highlight how hard it is to study the small faint sources in the early universe.

Loeb is reluctant to pin too much on a single emission from a single faint source.

Eric Agol at the University of Washington points out that it requires a small signal from a very faint source.

While spectroscopy of extremely faint sources is not trivial the primary technology challenge, the «tall tent pole», is starlight suppression — blocking the bright light from the target star so as to capture the faint reflected light of the exoplanet.

It significantly enhances the spectroscopic capabilities of HST at ultraviolet wavelengths, and provides observers with unparalleled opportunities for observing faint sources of ultraviolet light.

But Hyron Spinrad, an astronomer at the University of California, Berkeley, is confident that Hu's faint source is a true early galaxy.

Modern telescopes are optimized to ferret out the faintest sources, but that spells trouble when a dazzling explosion erupts.

However, four were shown by Herschel to be formed of multiple, fainter sources, indicating previously unknown galaxy clusters.

The most likely explanations involve radiation or outflows from an active galactic nucleus (AGN) that is strongly obscured by dust so that only a faint source can be seen associated with the nebula.

More than 400 faint sources were detected, 90 % of them in 4 crowded fields.