Heidi B. Hammel's avatar

Heidi B. Hammel

@hbhammel.bsky.social

518 followers 141 following 314 posts

planetary astronomer | nearly famous | jwst interdisciplinary scientist | looks just like an ordinary mom | oboist | she/her (thoughts expressed here are my own)

Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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Who wore it better?

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Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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It is indeed more challenging to detect smaller exoplanets than larger ones. The ability to characterize their atmospheres depends on where the exoplanet is located. JWST is powerful but limited, hence the need for Habitable Worlds Observatory.

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Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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The skinny on planetary systems and why we need Habitable World Observatory (plus it will do AMAZING astrophysics as well!) 🔭

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Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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Team Uranus (including me, led by Larry Sromovsky) just published "an exceptionally comprehensive analysis" of Keck 🔭 Uranus images/spectra, "a masterclass in image analysis from authors at the height of their image-processing powers" (quotes from Reviewer 1) authors.elsevier.com/c/1jKGL_Rp9u...

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Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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JWST 🔭 infrared images reveal complex H3+ ionospheric emission above and around Jupiter's Great Red Spot. Possible cause: gravity waves from the lower atmosphere breaking in ionosphere.
Science paper: www.nature.com/articles/s41...
Press release: le.ac.uk/news/2024/ju...

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Reposted by Heidi B. Hammel

Meg Schwamb's avatar Meg Schwamb @megschwamb.bsky.social
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Day 1 of #TNO2024 in Taipei, Taiwan - the gathering of outer Solar System astronomers, planetary scientists, dynamicists, mission specialists, and ice lab researchers - A great intro talk to kick things off by Ana Carolina De Souza Feliciano giving an overview of the latest JWST results

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Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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Thx pls do! Much appreciated.

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Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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Is there an arxiv link? (nature is paywalled) thx!

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Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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And on the end was Raja Roy, who perhaps I should not have characterized as a historian, but more someone who studies institutional change in an evolving tech environment, and who brought his experience with int'l engagement to the panel: www.researchgate.net/profile/Raja...

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Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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Except for me, they were all historians. My lone voice was as a scientist who lived through and worked within the field during this transitional period.

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Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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Pic by Margaret Days of our panel discussion yesterday at the National Academy of Sciences. We used NASA's Discovery & New Frontiers programs as a jumping-off point to discuss of the significance of the post-Cold War era of planetary exploration, and how/why it differs today...

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Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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Symposium kicks off about the NASA Discovery and New Frontiers missions - I’ll be speaking as part of a panel discussion this afternoon

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Reposted by Heidi B. Hammel

spacetelescope.bsky.social's avatar spacetelescope.bsky.social @spacetelescope.bsky.social
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A strange event happened in 1975, when a nova called HM Sagittae grew 250 times brighter as it ingested gas from a bloated red giant companion it is orbiting. It never really faded away as novas commonly do, but has maintained its brightness for decades. (1/5) 🧵 🔭 🧪

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Reposted by Heidi B. Hammel

Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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but not quite right, either...

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Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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DM me if you are having issues, Mark

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Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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One of the contestants thought NEO meant non-Earth objects, alas.

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Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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Two 🔭 facilities managed by ⁦‪@AURADC‬⁩ were featured on ⁦‪⁦‪@Jeopardy‬⁩ tonight in the “observatories” category!

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Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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RIP Ed Stone, long-time leader of the Voyager mission. I learned so much from him during the Neptune encounter: both how to maximize science and how to share science with the world. He was also a genuinely nice person. Sincere condolences to Ed's family and close friends.

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Reposted by Heidi B. Hammel

Kite 🏳️‍⚧️'s avatar Kite 🏳️‍⚧️ @kiteincolours.art
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Hey here's you're reminder: You're not too old to pick up a pen and learn to draw. You're not too old to learn an instrument. You're not too old to learn to sculpt, or write a book. You are not too old to create things.

39 replies 709 reposts 1793 likes

Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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This nice summary article about using JWST to explore our own Solar System came out while I was away. So wonderful to see many results from my guaranteed JWST time highlighted here. webbtelescope.org/contents/art...

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Reposted by Heidi B. Hammel

Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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At the "ELT Science in Light of JWST" mtg earlier today in Japan, André-Nicolas Chené gave a talk on the "US Extremely Large Telescope Program: NOIRLab and the Science Data Life Cycle" 🔭

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Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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Yowza, JWST 🔭! The redshift of galaxy "JADES-GS-z14-0" is z = 14.32 (+0.08/-0.20), making it the current record-holder for the most distant known galaxy. This corresponds to a time less than 300 million years after the big bang. blogs.nasa.gov/webb/2024/05...

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Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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Alas, all good things must come to an end - the first of four flights back home. Adios Galápagos!

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Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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5/24/2024: There aren't a lot of places in the world where you can take these two photographs on the same day: Galapagos penguin and American flamingo! The Galapagos archipelago has a unique combination of cold marine currents and dry, tropical lowlands. Pix taken yesterday by my friend E. J. Simon.

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Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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A blue-footed booby and his three-week old baby booby; we saw another who was incubating two eggs. These were right on the trail above the green sand beach at Punta Pitt, which just opened to tourists a few weeks ago.

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Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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Enroute to the Galápagos Islands - be prepared for many iguana and bird pix!

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Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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I love that this new NASA video about the iconic "Horsehead" nebula ties the very newest JWST images all the way back to the nebula's discovery by Williamina Fleming on glass photographic plates now in the Harvard plate stacks. 🔭. www.youtube.com/watch?v=1Fxu...

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Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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A few weeks ago, AURA held its 2024 Annual Meeting in Tucson, AZ. Lots of presentations about telescopes, and good discussions about astronomical facilities. 🔭 Thanks to all who organized, attended, and participated! www.aura-astronomy.org/blog/2024/05...

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Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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If you are US citizen, you do have the option of writing to your representatives in Congress to express your sadness and encourage better funding for US science programs at NSF and NASA.

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Reposted by Heidi B. Hammel

Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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Uranus and Neptune represent on Jeopardy tonight! Yes, I was yelling the answers at the TV. 😂

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Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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Maybe it's just me, but this new DECam image sure looks like a cosmic shai-hulud emerging from nebular dust to snap up a galaxy ... in reality, it is a "cometary globule" which has nothing to actually do with comets. More details and a high-res image at noirlab.edu/public/image... 🔭

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Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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We need the video with the planet Uranus rotating!

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Reposted by Heidi B. Hammel

Mark Marley's avatar Mark Marley @markmarley.bsky.social
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In a meeting, “we need a computer 3D visualization of Uranus’ magnetic field and rotation”. Old timer: “we have this left over from Voyager”. 🔭🚀

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Heidi B. Hammel's avatar Heidi B. Hammel @hbhammel.bsky.social
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Lucas and I found the beach near Porto, after viewing the Yayoi Kusama exhibit at the contemporary art museum nearby

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Reposted by Heidi B. Hammel

Reposted by Heidi B. Hammel

Sarah Kendrew's avatar Sarah Kendrew @sarahkendrew.bsky.social
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Really fun talk from @hbhammel.bsky.social on Solar System science with #JWST: there’s lots of new science to be gained even though the targets are bright and well-studied. Plus the technical challenges: very bright, very fast-moving. Great stuff. #hubblewebb7 🧪🔭

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Reposted by Heidi B. Hammel

Sarah Kendrew's avatar Sarah Kendrew @sarahkendrew.bsky.social
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ESA is hosting a conference in Porto, Portugal this week to highlight science with Hubble and JWST 🧪🔭

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Reposted by Heidi B. Hammel

Sarah Kendrew's avatar Sarah Kendrew @sarahkendrew.bsky.social
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Maca Garcia Marin (ESA/STScI) highlights recent improvements for JWST at #hubblewebb7:
- improved guide star catalog
- 1/f noise correction for NIRSpec MSA
- fringe correction for MIRI MRS
- correction of EMI noise in MIRI subarrays
And much more 🧪🔭

1 replies 2 reposts 6 likes