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Gregory Walth
@vega18h37m.bsky.social
Scientist at Caltech/IPAC working on the Roman Space Telescope. Interests: Dusty galaxies, CGM, gravitational lensing, data pipelines, coffee. He/Him gwalth.github.io/
161 followers241 following41 posts
GWvega18h37m.bsky.social

I'm in Rome for the Euclid Consortium Meeting

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Reposted by Gregory Walth
DLlrebull.bsky.social

🔭🧪🎢🧑‍🔬Educators: Do real research with NASA Astronomers! The NASA/IPAC Teacher Archive Research Program (NITARP) invites US-based teachers to apply for its one-year program. Travel costs are included! Deadline: September 13, 2024 for the 2025 program year. nitarp.ipac.caltech.edu

NITARP - NASA/IPAC Teacher Archive Research Program
NITARP - NASA/IPAC Teacher Archive Research Program

NASA/IPAC Teacher Archive Research Program

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GWvega18h37m.bsky.social

This is as good as it will get from LA. I'm hoping that everyone that has traveled far will have clear skies.

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Reposted by Gregory Walth
JMplanet4589.bsky.social

www.savechandra.org is now live

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Reposted by Gregory Walth
RMxkcd.com

I recently made a comic complaining that NASA refuses to listen to my good ideas for improving the Solar System (xkcd.com/2750). To my delight, NASA’s Science Mission Directorate has sent me an actual expert panel evaluation of my “flatten the planets” proposal! Sadly, they decided not to fund it.

136
Reposted by Gregory Walth
DJaussiastronomer.bsky.social

Oh hey I did not see that JWST-MIRI imaging of HR 8799 had come out!! Hey look, planets!!!!! arxiv.org/pdf/2310.134...

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Reposted by Gregory Walth
Sspacetelescope.bsky.social

Proof that every picture is worth a thousand words! The James Webb Space Telescope observed a quasar (an active supermassive black hole) and captured information about the motions of gas in several nearby galaxies. Each color represents the relative speeds of the gas: webbtelescope.pub/3SkWPnQ

A bright, blurry collection of objects is located in the center of the image, lying against a black background. They resemble watercolor-like smudges or a vibrant, unfocused ink blot. In the very center is a white object. To its upper left is a green area, and above that is a yellow area. Below and to the right of the central white object is a blue area. Below the blue section is a long, narrow, diagonal red area. In the top left corner, a small red blotch is cut off by the image’s frame.
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Reposted by Gregory Walth
DFdeckerkf.bsky.social

I'm hiring a postdoc! If you are or know anyone interested in working on black hole transients and variability, please apply or pass along the word! jobregister.aas.org/ad/cbafba08

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Reposted by Gregory Walth
EKkadofong.bsky.social

Paper day! arxiv.org/abs/2401.16469 We use the background galaxies in the SAGA survey to infer the efficiency of winds driven by star formation in low-mass galaxies. We find a mass-loading factor of ~1: consistent with direct observations, but smaller than what some sims predict at these masses.

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GW
Gregory Walth
@vega18h37m.bsky.social
Scientist at Caltech/IPAC working on the Roman Space Telescope. Interests: Dusty galaxies, CGM, gravitational lensing, data pipelines, coffee. He/Him gwalth.github.io/
161 followers241 following41 posts