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Josh Simon @joshsimon.bsky.social · 04/04/2025

Seems like kind of a big oversight that the Biden OMB didn't rescind this "no longer effectuates the program goals or agency priorities" part.

A screenshot of part of the Suspension and Termination Procedures for NSF grants, showing that NSF can terminate grants that "no longer effectuat[e] the program goals or agency priorities."

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Josh Simon @joshsimon.bsky.social · 24/03/2025

I mean, when you hire a Fox News host as Secretary of Defense, you can't really be surprised when he has a Fox News-level understanding of opsec.

The end of The Atlantic article reporting a Signal chat discussing the bombing of Yemen. The paragraph reads: "All along, members of the Signal group were aware of the need for secrecy and operations security. In his text detailing aspects of the forthcoming attack on Houthi targets, Hegseth wrote to the group—which, at the time, included me—`We are currently clean on OPSEC.'”

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Josh Simon @joshsimon.bsky.social · 14/10/2024

I thought that these objects, Eridanus III and DELVE 1, would be ordinary star clusters. But I was wrong! The brightest star in each is extremely metal-poor, highly enriched in carbon and nitrogen, and contains very little barium and strontium. This combination doesn't exist in globular clusters. 🔭

Plots of the spectra of the brightest star in DELVE 1 and the brightest star in Eridanus III. Spectral regions including absorption from carbon, strontium, magnesium, and barium are shown, with very strong carbon absorption evident.

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Josh Simon @joshsimon.bsky.social · 14/10/2024

🔭 Paper announcement! With @alexji.bsky.social, @wcerny.bsky.social, and a host of others, we analyze some of the first spectroscopy of stars in compact (r < 10 pc), ultra-faint Milky Way satellites in arxiv.org/abs/2410.08276. Our two target systems are highlighted here:

A plot of the brightness (absolute magnitude) of the Milky Way's population of star clusters and dwarf galaxies, as a function of their size (half-light radius). Bright galaxies and clusters occupy distinct regions of this parameter space, but for the faintest objects the two classes overlap so that it is no longer possible to classify a system just from its size and luminosity. Two satellites, Eridanus III and DELVE 1, which have absolute magnitudes of -2 and 0 and sizes of about 7 pc, respectively, are plotted as red diamonds.

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Josh Simon @joshsimon.bsky.social · 14/10/2024

Last, but very definitely not least, our second-oldest fellowship is the Carnegie-Princeton Fellowship. Spend two years each at Carnegie and in #Princeton's astronomy department, taking advantage of a unique breadth of opportunities! 🔭 aas.org/jobregister/...

The Department of Astrophysical Sciences building at Princeton, seen at twilight and featuring an open telescope dome on the roof.

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Josh Simon @joshsimon.bsky.social · 14/10/2024

So we don't leave the theorists out, we are also again advertising a joint Carnegie-Caltech Theory Fellowship. This fellowship provides simultaneous access to two great astronomy departments only a 10-minute drive apart. aas.org/jobregister/... 🔭

A photo of the front of the Carnegie Observatories building in Pasadena, hung with banners illustrating the history of astronomical discoveries at Carnegie.

The Cahill Center for Astronomy and Astrophysics, home of the Caltech Astronomy Department.

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Josh Simon @joshsimon.bsky.social · 14/10/2024

An amazing opportunity for those that need the biggest and best telescopes on the planet: the Carnegie-Caltech Brinson Fellowship in Observational Astronomy. Divide your time between #Carnegie and #Caltech, using observing facilities from both! 🔭 aas.org/jobregister/...

The twin Keck telescopes, with domes open to reveal the telescopes inside, under a colorful cloudy sky at sunset.

The twin Magellan telescopes on a snowy mountaintop.

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Josh Simon @joshsimon.bsky.social · 14/10/2024

Carnegie is an observatory that's home to a thriving theoretical astrophysics program. Our outstanding theory group currently spans from exoplanets to cosmology. Apply for the CTAC Fellowship: aas.org/jobregister/... 🔭

Carnegie astronomer Juna Kollmeier standing in front of a giant curved wall of screens displaying an astronomical simulation.

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Josh Simon @joshsimon.bsky.social · 14/10/2024

Let's start with the OG Carnegie Fellowship. Spend three years in Pasadena taking advantage of a great community and as much telescope time as we can throw at you! 🔭⭐🔭⭐🔭🪐 aas.org/jobregister/...

The moon, surrounded by a halo of ice crystals, over one of the Magellan telescopes.

A fisheye view of a white building that hosts the offices of Carnegie Observatories in Pasadena, CA.

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Josh Simon @joshsimon.bsky.social · 14/10/2024

Good morning, #astrosky! For all of the #gradstudents and #postdocs out there, I'm excited to announce the 2024 edition of the Carnegie Observatories postdoctoral fellowship program! Join us in Pasadena for 1 of 5 phenomenal opportunities this year: carnegiescience.edu/about/workin... 🔭

A view of the Milky Way over the Magellan Baade telescope at Las Campanas Observatory.

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Josh Simon @joshsimon.bsky.social · 07/09/2023

All of our fellowships are fully independent research positions, with starting salaries of $79500/year and generous research budgets. Applications are due October 30, 2023! 🔭

Several planets and a star cluster in the evening sky over Las Campanas Observatory.

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Josh Simon @joshsimon.bsky.social · 07/09/2023

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Josh Simon @joshsimon.bsky.social · 07/09/2023

An amazing new opportunity for those that need the biggest and best telescopes on the planet: the Carnegie-Caltech Brinson Fellowship in Observational Astronomy. Divide your time between Carnegie and Caltech, using observing facilities from both! 🔭⭐🔭⭐ jobregister.aas.org/ad/44dfa972

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Josh Simon @joshsimon.bsky.social · 07/09/2023

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Josh Simon @joshsimon.bsky.social · 07/09/2023

Let's start with the one, the only, the truly incomparable Carnegie Fellowship. Spend three years in Pasadena taking advantage of a great community and as much 🔭🔭 time as we can throw at you! jobregister.aas.org/ad/5a39546f

The offices of Carnegie Observatories in Pasadena, CA.

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Josh Simon @joshsimon.bsky.social · 07/09/2023

Good morning, #astro Bluesky! For all of the #gradstudents and #postdocs out there, I'm excited to announce the 2023 edition of the Carnegie Observatories postdoctoral fellowship program! Join us in Pasadena for 1 of 4 phenomenal opportunities this year: obs.carnegiescience.edu/fellowships 🔭🔭🔭

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