Posts tagged with: astronomy

Exocast-46b: Interview with Moiya McTier

This month Hugh, Andrew, and Hannah talk to astrophysicist, folklorist, and science communicator Moiya McTier. Moiya is an NSF graduate researcher at Columbia University in New York City and works to understand exoplanets from a galactic perspective. The Exocast team talks to Moiya about work from measuring the topography on an exoplanet by the effect that mountains and other features have in transit, all the way up to how the stars in the Milky Way

Exocast-45c: how many exoplanets are there?

In this episode, the team sits down to ponder the question how many exoplanets are there? At first, this might seem like a relatively straightforward question that can be answered by NASA’s Exoplanet Archive, but it becomes more daunting when considering, for example, the biases and limitations of our instruments that affect our ability to even detect and characterise many planets, how we define a ‘planet’, and whether or not we have surveyed enough stars

Exocast-44c: Can we ever image the surface of an exoplanet?

On this episode we ask the question: Can we ever image the surface of an exoplanet? Once we get all the definitions out of the way, like ‘what do we mean by map?’ and ‘what do we mean by surface?’, we take a deep dive into the realm of instrumentation to discuss the possibilities and limitations of our upcoming and near-future exoplanet imaging technologies. We touch on some of the avenues that astronomers & engineers

Exocast-43 d: Exoplanet news

In the final of three mini-exocasts we will release this month, we cover some of the notable happenings in exoplanet science over the past month. On this episode we cover new planets from the TESS mission, a novel technique for detecting exoplanets using radio emission, and the end of the very productive KELT survey after 17 years. We also revisit K2-18b, which hit the exoplanet headlines last year after water vapour was definitively detected in

Exocast-42b: Special Guest Dr Stephen Kane

Our final bite-size episode for this month features Andrew, Hannah, and Hugh chatting with Dr Stephen Kane, Associate Professor of Planetary Astrophysics in the Departments of Earth and Planetary Sciences and Physics and Astronomy at the University of California, Riverside. Stephen tells us a little about his need to use all exoplanet detection techniques, his love for our hot and cloudy next-door neighbour Venus, and he tries to sneak two planets into our adopted exoplanet list, before settling on one

Exocast-42c – Water in the Universe

In the second of three mini-casts this month, Hannah, Hugh, and Andrew gather around the virtual table to discuss that weird and wonderful molecule: H2O! The importance of water to our lives is undeniable, but in this show we chat about what makes water so chemically unusual and important in the study of astrophysics, exoplanet astronomy, and astrobiology. http://media.blubrry.com/exocast/p/www.exocast.org/wp-content/uploads/2020/02/exocast_42_feature_water_jan2020-1.mp3Podcast: Play in new window | DownloadSubscribe: Android | RSS

Exocast-40b: Brett Morris talks starspots & astrobiology, the #ExoCup2019 is underway, plus exoplanet news

Hugh chats with his colleague at the University of Bern Dr. Brett Morris about starspots and their effect on exoplanet detection and characterisation, his experience with an astrobiology mission right here on Earth, and he recounts an exciting day in Bern earlier this year. Andrew discusses the labels we apply to the worlds we find, and the gang debates the usefulness of the terms for exoplanet science. And Hannah reads ADS so you don’t have

Exocast-37b: Live at TESScon, an intro to planetary protection, & the month in exoplanet news

Quizmaster Hugh takes to the conference hall at the 1st TESS Science Conference (TESSCon) to test the attendees’ exoplanet knowledge! Andrew compiles a (not very) top secret report-out on planetary protection. And Hannah covers this month’s news including the detection of an exoplanet magnetic field, new planets from TESS, a Kepler-load of 350 new candidates, as well as advances in exoplanet population statistics and atmospheric characterization. http://media.blubrry.com/exocast/p/www.exocast.org/wp-content/uploads/2019/08/Exocast-37b_v1.mp3Podcast: Play in new window | DownloadSubscribe: Android |

Exocast-26b with Natasha Batalha, PandExo, RVs, and HAT-P-26b

In the 26th episode of Exocast: Natasha Batalha joins Hannah for a chat about PandExo (the Exoplanet ETC for HST and JWST) and her work on Martian climate modelling. Hugh discusses all things radial velocity: history, current, and future prospects. Andrew covers all of June’s exoplanet news; And Natasha adds “Hannah’s special planet” HAT-P-26b to our gang of Adopted Planets http://media.blubrry.com/exocast/p/www.exocast.org/wp-content/uploads/2018/07/Exocast-26b_v2.mp3Podcast: Play in new window | DownloadSubscribe: Android | RSS

Exocast-18b – Direct Imaging Special with special guest Sasha Hinkley

In the 18th episode of Exocast, we chat to Sasha Hinkley, a direct imaging expert at the University of Exeter: “Spotlights & fireflies” – what it means to be able to directly image planets and how we do it. Why direct imaging may not have the numbers compared to other detection techniques, but can give us so much more information on each planet The future of direct imaging instruments, including JWST, WFIRST and the E-ELT.

Exocast-12b

In the twelfth episode, Exocast-12b: Andrew details highlights of the recent UK exoplanet meeting. Hugh and Andrew play “Just an Arcminute” with UK exoplanet scientists. Hannah sits in at the exocast newsdesk to cover news including new data on the Trappist-1 system, unusual clouds closer to home, and new brown dwarfs at the boundary of planets & stars. And Hugh chooses Kepler-47ABc, a rare circum-binary planet, as our adopted planet of the month. http://media.blubrry.com/exocast/p/www.exocast.org/wp-content/uploads/2017/04/exocast12b_v2.mp3Podcast: Play in new window | DownloadSubscribe: Android | RSS

Exocast-10b

For your listening pleasure in Exocast-10b, the first episode of 2017: Hugh provides some perspective on what happens to planets after their stars die. Hannah gives us a run down of Hubble’s new PanCET program. Andrew takes to the Exocast news helicopter to deliver exoplanetary news from the last month. Hannah adopts a nearby habitable world displaying clear evidence of atmospheric disequilibrium. http://media.blubrry.com/exocast/p/www.exocast.org/wp-content/uploads/2017/01/Exocast-10b_HRW_V1.mp3Podcast: Play in new window | DownloadSubscribe: Android | RSS

Exocast-8b

Exocast-8b In the eighth Exocast episode: • Andrew turns his attention to the weird and wonderful worlds bringing science fiction and fact a little closer together; • Hugh covers the latest developments in the case of the enigmatic Boyajian’s Star; • Hannah reports on the month’s news in exoplanet research; • And we adopt Latham’s Planet (HD 114762 b), arguably the first exoplanet discovered, into our planet family. http://media.blubrry.com/exocast/p/www.exocast.org/wp-content/uploads/2016/12/exocast8b_v3.mp3Podcast: Play in new window | DownloadSubscribe: Android

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