Eric Mamajek

@EricMamajek

Astronomer, dad, stars, (exo)planets. Statements and opinions posted here are my own. I don't respond to Twitter DM.

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Joined February 2011

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  1. Retweeted

    NEW PAPER ALERT! "Scaling K2. I. Revised Parameters for 222,088 K2 Stars and a K2 Planet Radius Valley at 1.9 R⊕" (soon in ApJS!) This is the first paper in the "Scaling K2" series, with the ultimate goal of computing planet occurrence rates. But...

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  2. Retweeted

    As a 19 year old working with James Binney, the beauty of Galactic Dynamics lured me into astrophysics. With GAIA tracing orbits of billions of stars, now is the most exciting time to be dynamicist. Join us in NYC for our summer school!

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  3. Feb 1

    Virtual Town Hall: Dual-Anonymous Peer Review for Astrophysics General Observer / General Investigator Programs February 27, 2020 1:00 P.M.–2:00 P.M. ET.

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  4. Feb 1

    I was briefly excited when I thought was referring to 4.1m and 8.2m telescopes.

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  5. Retweeted
    Jan 9

    The latest observations show that continues to decrease in luminosity in the visible. But in the (JH bands) its is constant. It could mean that a lot of dust (transparent in the ) is forming and blocks a big part of the visible star light.

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  6. Retweeted

    At 2:34 pm PST on Jan. 30, 2020, Spitzer Project Manager Joseph Hunt declared the Spitzer spacecraft decommissioned. Farewell, Spitzer. Thank you for the great science. 👋

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  7. Retweeted

    Engineers confirm 's mission ended today. The spacecraft is in safe mode, as planned. In 16+ years in space, Spitzer changed our understanding of the universe & was a pathfinder for space telescopes to come. It was a very good spacecraft🖤

    Infographic showing spitzer's achievements: 36.5 million images, 3 science instruments, 85 cm telescope, 16.4 years in space
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  8. Retweeted
    Jan 29

    I’m an Astros fan. To understand the scope of the Astros cheating & the players involved, I logged every trashcan bang from every Astros 2017 home game w/ video available. Over 8,200 pitches watched and over 1,100 trashcan bangs found. The results are at .

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  9. Retweeted
    Jan 29

    Hey! New Horizons is so far away that Proxima Cen shifts by 32 arcsec and Wolf 359 by 16, and we're going to show that by taking images of their fields on April 22-23 and comparing them to simultaneous Earth-based images.

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  10. Retweeted
    Jan 29

    I'll call that a miss. Trails of both and continue unimpeded after intersection, near bottom-left corner of the frame.

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  11. Retweeted

    Prelim M7.7 Earthquake Cuba region Jan-28 19:10 UTC, updates

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  12. Jan 27

    What’s a factor of three between friends! If you told me 0.2+-0.1 a decade ago, I’d have been impressed.

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  13. Retweeted

    Remembering the crew of Apollo 1. On January 27, 1967, astronauts Virgil I. "Gus" Grissom, Edward H. White II, and Roger B. Chaffee perished in a fire during a pre-launch test for what was to be the first crewed Apollo mission.

    Crew of Apollo 1
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  14. Retweeted
    Jan 26

    I'm happy to say that the full HabEx report, it all of its 498-page, 171-author glory is now available on arxiv. Thanks all who contributed to the HabEx mission concept! ps. The Executive Summary is only 19 pages!

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  15. Retweeted
    Jan 26

    please spread the news!!! MIAPP Conference: "Stellar Astrophysics in the era of Gaia, spectroscopic, and asteroseismic surveys" 31 May - 25 June 2021 with , Saskia Hekker, Amanda Karakas, and Rolf Kudritzki

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  16. Jan 24

    Nominally: S = 1361 W m^-2 L = 3.828e26 W R = 695,700 km Teff = 5772 K GM = 1.3271244e20 m^3 s^-2 Mbol = 4.74 mbol = -26.832 Current best estimates: BCv = -0.085 Vmag = -26.747 age = 4.568 Gyr I'm really bad at this. I mean "burn"?

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  17. Retweeted
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  18. Retweeted

    We're celebrating 's legacy and discoveries today during a live show. Join us, won't you? And, as always, if you have questions: 📆 TODAY! ⏰ 1pm ET/ 10am PT ❓ 💻

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  19. Jan 21

    Done with humans and humaning today. Enjoying and Attenborough narration on

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  20. Retweeted
    Jan 21

    Congratulations to Deputy Director Dr. Roc Cutri for receiving the George Van Biesbroeck Prize! The award recognizes "his long-standing and selfless service and support for ground- and space-based infrared astronomy."

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