FEB 12, 2018 05:13 PM PST

Astronomers Discover Hot Jupiter-Like Exoplanet During Grazing Transit Event

When an exoplanet passes in front of its host star from our point of view, astronomers call it a transit event. In some cases, the exoplanet doesn’t transit entirely inside of the host star’s disc, and astronomers refer to this event as a grazing transit.

An artist's impression of a hot Jupiter-like exoplanet orbiting its host star very closely.

Image Credit: Spaceanswers.com

Exoplanetary transit events often help astronomers discern distant worlds and details about them, but grazing transit events can provide similar insight. In fact, a new paper published on the arXiv.org server depicts a recently-discovered hot Jupiter-like exoplanet that presented itself by way of a grazing transit event.

Dubbed WASP-174b, astronomers found the exoplanet while perusing spectrographic data captured from the heavens with the WASP-South telescope located at the South African Astronomical Observatory (SAAO). The team purportedly validated their findings by comparing them with data collected by a bevy of other observatories.

"We report here the discovery of a hot Jupiter found as a candidate in the WASP-South transit survey and confirmed by Doppler tomography using the ESO 3.6-m/HARPS spectrograph, together with follow-up photometry from the TRAPPISTSouth and SPECULOOS Southern Observatory telescopes," the paper explains.

Related: This hot Jupiter-like exoplanet exhibits light-absorbing qualities

The study indicates that WASP-174b sports a radius equivalent to 0.7-1.7 Jupiters and about 1.3 times the mass. It also reveals how WASP-174b rotates once every 4.4 days and that it orbits its host star within 0.0555 AU once every 4.23 days. Given how closely WASP-174b orbits its host star, the exoplanet is undoubtedly too hot to support life.

Grazing transit events like this one often leave a lot to be desired when it comes to measurement data, so these estimates should be taken with a grain of salt. Nevertheless, but the findings are still substantial because they've confirmed the existence of another previously-unknown world.

It should be interesting to see if any future observations shed additional light on the astronomers’ most recent findings.

Source: Phys.org

About the Author
  • Fascinated by scientific discoveries and media, Anthony found his way here at LabRoots, where he would be able to dabble in the two. Anthony is a technology junkie that has vast experience in computer systems and automobile mechanics, as opposite as those sound.
You May Also Like
JUL 24, 2018
Space & Astronomy
JUL 24, 2018
Mars is About to Make its Closest Approach to Earth in 15 Years
If you look up into the night sky from July 27th to July 31st, then you might see what appears to be an ultra-luminous star. But we warned – that&rsq...
AUG 22, 2018
Space & Astronomy
AUG 22, 2018
How Much Damage Could an Asteroid Impact Do?
There are so many asteroids in the solar system that it’s challenging to keep track of them. In fact, many asteroids are still lurking in the shadows...
AUG 26, 2018
Space & Astronomy
AUG 26, 2018
NASA's OSIRIS-REx Spacecraft Snaps its First Picture of Bennu
NASA’s Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer (OSIRIS-REx) mission is now one step closer to realizing...
SEP 09, 2018
Space & Astronomy
SEP 09, 2018
The End of NASA's Dawn Mission is Rapidly Approaching
NASA’s Dawn spacecraft ventured away from Earth to study other bodies in the Solar System 11 years ago; that’s three years longer than anyone e...
SEP 17, 2018
Space & Astronomy
SEP 17, 2018
How Common Are Planetary Collisions?
Outer space is nothing short of a galactic free-for-all. Space rocks fly in virtually every direction, sporadically impacting larger objects like moons, pl...
OCT 17, 2018
Space & Astronomy
OCT 17, 2018
Do Magnetic Fields Influence Supermassive Black Hole Activity?
Black holes have long captivated some of the most brilliant minds in astrophysics, and despite all the space telescope observations astronomers have made o...
Loading Comments...