A. Suárez Mascareño

@asuarezmascareno.com

2.2K followers 290 following 1.1K posts

Astronomy postdoc at the Instituto de Astrofísica de Canarias (IAC, Spain). Hunting low mass exoplanets. Member of the ESPRESSO, NIRPS, HARPS-3, ANDES, and CHORUS, science teams. Co-PI of the IACSAT-1.

Videos

Physics 87%

Engineering 10%

Posts Replies Media Videos

Reposted by A. Suárez Mascareño

Nin @socialistsociopath.bsky.social · 9h

Just because

A. Suárez Mascareño @asuarezmascareno.com · 5d

About to start a week-long workshop about the ongoing collaboration between China and Spain on high resolution spectroscopy 🔭

A. Suárez Mascareño @asuarezmascareno.com · 8d

Lately I've been working with FEROS data. 0/10. Not recommended 🔭

Reposted by A. Suárez Mascareño

Andrés Trasado @andrestrasado.bsky.social · 8d

Buen día para recuperar el póster DE VERDAD de Wicked

A. Suárez Mascareño @asuarezmascareno.com · 9d

It appears I had more than 30k emails in my inbox. Some might consider that a tad excessive. But don't worry, only 3500 are unread.

A. Suárez Mascareño @asuarezmascareno.com · 9d

Today I got a somewhat annoyed email from our IT department telling me I'm not allowed to keep saving all those 2020 attachments I have already forgotten about in my email server. Now I am forced to remove all those paper drafts and ESO observing logs from 4-5 years ago.

A. Suárez Mascareño @asuarezmascareno.com · 9d

This is certainly happening in astronomy. Over my (not long) career I have seen a change in how data is treated. In particular public data. Nowadays there are a lot of rules of how to use it and who should be invited to use public data. 10-12 years ago I remember just inviting PIs if we liked them

A. Suárez Mascareño @asuarezmascareno.com · 9d

Its no yet 1000/pub but getting several tens or up to 100 is now very easy

A. Suárez Mascareño @asuarezmascareno.com · 9d

In observational astronomy I think It is very hard to keep short author lists while trying to be fair to the people that planned and performed the observations. In those i'm involved (as lead or co) It is very normal to use a minimum of 4-5 sources of data, each of them with their own policy

Reposted by Smith, Kathleen Kennedy, A. Suárez Mascareño

Laura @lauropea.bsky.social · 10d

saturation with Tolkien spinoffs has somehow not prepared our culture for the arrival of dark lords bearing a gift that everyone becomes convinced they can wield to accomplish great things but just makes them dependent and start whispering about preciouses if you suggest just throwing it away

A. Suárez Mascareño @asuarezmascareno.com · 12d

Since he started with the seizures and the medication in late july, Karateka has been quite clumsy and wouldn't climb any high place. Today when I came back from work I found this ❤️

Karateka (grey) and Suri on their cat tree

A. Suárez Mascareño @asuarezmascareno.com · 16d

Big statement by the TMT team. Doesn't mean It will actually happen, but I think I've never seen the consortium consider the possibility in such explicit way 🔭

A. Suárez Mascareño @asuarezmascareno.com · 19d

The visit continues. Today i'm back at the Observatory of Geneva after more than 6 years.

A. Suárez Mascareño @asuarezmascareno.com · 20d

I'm visiting Geneva for a NIRPS project meeting and so far I've been indulging in some nostalgic vacation. I went to check on my old apartment, and visited two of the same restaurants I used to go when I lived here

A. Suárez Mascareño @asuarezmascareno.com · 21d

It's a tough time for cautionary tales, as rich assholes have the means to see how they benefit and make them come true

Genetically Engineered Babies Are Banned. Tech Titans Are Trying to Make One Anyway.

Silicon Valley startups are pushing the boundaries of reproductive genetics, hoping to prevent diseases as well as improve chances for a high IQ and other traits.

www.wsj.com

A. Suárez Mascareño @asuarezmascareno.com · 22d

I shouldn't need to hide stuff that opens a path to a future potentially important result because senior scientists cannot keep their cool for a while (or few years, in this case).

A. Suárez Mascareño @asuarezmascareno.com · 22d

I would assume listening to me about the shortcomings of my own work would be a good idea. That should be considered a lower limit of shortcomings. They should assume more shortcomings than those I explicitly and preemptively explain, not less.

A. Suárez Mascareño @asuarezmascareno.com · 22d

Ugg... I never learn... I do something potentially cool and send it to a collaborator saying "ok, so this are the results with the current data, but I have no control over biases. We need XX additional more data to be sure". And I always get the response of OMG WE SUBMIT TO NATURE RIGHT NOW

a man with a beard is touching his forehead with his hands

ALT: a man with a beard is touching his forehead with his hands

media.tenor.com

A. Suárez Mascareño @asuarezmascareno.com · 23d

At outreach events, they take much better pictures than at most conferences. Maybe just add a couple € to the register fee to pay a photographer for three-four days.

Reposted by A. Suárez Mascareño, Aviel Roshwald

Jason Wright @astrowright.bsky.social · 26d

I wrote a textbook!

I hope you like it.

store.ioppublishing.org/page/detail/...

Textbook cover for The Search for Extraterrestrial Intelligence: Theory and Practice by Jason T. Wright published by an American Astronomical Society and IOP Publishing Partnership (ebooks)

A. Suárez Mascareño @asuarezmascareno.com · 28d

At least I like the presentation I've made lol now off to get dinner

A. Suárez Mascareño @asuarezmascareno.com · 28d

Sometimes I say yes to stuff that seems exciting (e.g. presenting in an outreach festival) and then I realized really should have said no (e.g. when I'm preparing my presentation on a Saturday evening).

A. Suárez Mascareño @asuarezmascareno.com · 29d

Likely the silliest use of decades high precision radial velocity measurements

A. Suárez Mascareño @asuarezmascareno.com · 29d

New article dropping today on a very important and timely topic — the potential planetary system of Zeta² Reticuli, and what it might mean for planetary security #exoplanets 🔭

In space there will be no need to scream - Limits to the presence of giant planets in the $ζ^2$ Ret system

The search for life beyond our Solar system has been a long and difficult endeavour. The majority of current efforts are focused on the potential detection of biosignatures. However, their detection a...

arxiv.org

A. Suárez Mascareño @asuarezmascareno.com · 29d

Soon, we will need to get high-schoolers to write the papers, to make sure they have 5-10 when they start their MsC...

A. Suárez Mascareño @asuarezmascareno.com · 29d

At my institute we reached a point in which without a first-author paper it is almost impossible to enter the PhD program. I think it's absurd.

A. Suárez Mascareño @asuarezmascareno.com · 29d

After analysing 29 years of RV observations, we find that Calpamos likely does not exist, which also means LV-426 probably doesn’t either. The reported transmission from Zeta² Reticuli never happened, and the Nostromo never picked it up. Meaning Ripley, finally, gets to go home #exoplanets 🔭

A. Suárez Mascareño @asuarezmascareno.com · 29d

Can more massive planets still hide if the system? Only if it was face-on, which we find unlikely. Combining the measured v sin i (Santos et al. 2004) with our rotation period gives an inclination of ≈45°, which rules out planets more massive than 2.4–23 Me #exoplanets 🔭

A. Suárez Mascareño @asuarezmascareno.com · 29d

What about other planets? We applied state of the art techniques to evaluate the presence of any additional signal in the data, finding nothing. In fact, we could establish that no planets with m sin i larger than 2-20 Me (depending on period) are present in the system. #exoplanets 🔭

A. Suárez Mascareño @asuarezmascareno.com · 29d

We found no signal at the proposed period, but set a strong upper limit. An amplitude of ≤57 cm/s. For a 10 MJ planet to appear so small, it would need an inclination < 0.13°. Based on the statistics of the inclination of stellar axes, it has probability between 10⁻⁵ and 10⁻⁷. #exoplanets 🔭

A. Suárez Mascareño @asuarezmascareno.com · 29d

The main challenge: could Calpamos really exist within this data? With data of such a low scatter it was clear that if the orbit was edge-on it cannot exist. But what about with less favorably alignments? #exoplanets 🔭

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