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@AlexSanterne@astrodon.social cover
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AlexSanterne

@[email protected]

#Astronomer, working https://astrodon.social/@LAM_Marseille & teaching at Aix-Marseille #University (France)

Expert in #exoplanet detection and characterisation

Involved in the #PLATO space mission from #ESA. #ESO telescopes user.

Want to work in a #fair, #inclusive, and #sustainable #research #environment. Member of #labos1point5

Toot a lot about #ClimateChange and #Climate. Boycott planes, travel by #train only.

Interests: #photography #Astronomy #Space

#fedi22

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AlexSanterne , to academicchatter
@AlexSanterne@astrodon.social avatar

I'm invited to be jury of a thesis in 🇵🇹 which defence could be attended either in person or remotely. I find a decent route by from 🇫🇷 , via 🇪🇸 for a total of 4 trains to reach the destination and about 2 days in the train / stations, both ways for 2 days in Porto.

Regardless of the cost,, and considering the potentiel benefit in terms of exemplarity, would you attend in person ?

@academicchatter

AlexSanterne OP ,
@AlexSanterne@astrodon.social avatar

@jknodlseder @academicchatter I didn’t follow the work during the PhD, but I’m still one of the two main jury members.

The point I forgot to mention is that I spent 4 years in that team as post-doc and I never came back to Porto since 2016. I’m tempted.

(And I don’t have port wine anymore at home 😅)

AlexSanterne , to academicchatter
@AlexSanterne@astrodon.social avatar

Modern is perversed.

@academicchatter

AlexSanterne , to academicchatter
@AlexSanterne@astrodon.social avatar

I’m now carrying my in the …

En route to to attend a jury at the Geneva , which is located near the French border outside Geneva.

Instead of renting a , as I used to do in the past, this time I’m renting… a bike to go from the station to my (about 16km away) and the diary to the observatory.

@academicchatter

AlexSanterne , to academicchatter
@AlexSanterne@astrodon.social avatar

I've just computed that if you want to ONE by to (about 2880 tCO2, according to @labos1point5), by not sending (without attachment), I need to completely stop sending emails for the next ...

272 YEARS !

assuming an average of 10 mails per day, each working . The of an email is considered to be 4g CO2eq.

It's much easier to @StayGrounded_net !

@academicchatter

AlexSanterne OP ,
@AlexSanterne@astrodon.social avatar

@Anthro @labos1point5 @StayGrounded_net @academicchatter

Yeah, if my memory is good, 8h of zoom is up to 192 gCO2eq (that's assuming 8h with the camera on and screen sharing), which is equivalent of ~1km with a gasoline car or ~1km by plane.

500 miles by air flight is roughly equivalent to 9 continuous months of zoom (with screen sharing and camera on).

AlexSanterne OP ,
@AlexSanterne@astrodon.social avatar

@knud @labos1point5 @StayGrounded_net @academicchatter

Yeah, I know. I'm leaving 5km away from my house. When I drive to work (electric car) to spend my all day on zoom, my main source of emission is ... to actually go to my institute.

(without considering the emissions from my institute which don't depend if I go or not).

AlexSanterne , to academicchatter
@AlexSanterne@astrodon.social avatar

I had to update my . I think it is time now to have a brand new section in my dedicated to my engagement.

cc @academicchatter @labos1point5 @CNRS_INSU @cnes @LAM_Marseille @a4e

kateriniovi , to random
@kateriniovi@astrodon.social avatar

Hey!

I am a PhD candidate in Tartu, searching for the imprints of dynamical friction in different environments, and how through this there might be a possibility to constrain the properties of dark matter and other dynamics in galaxies. Supervised by Rain Kipper.

I am very interested in galactic dynamics, computational astronomy and lately I am exploring superbubbles in NGC628 as seen by JWST-MIRI.

AlexSanterne ,
@AlexSanterne@astrodon.social avatar

Hey @kateriniovi, welcome to Mastodon and the Fediverse 👋

Don't forget the hashtags, such as etc...

You might also add @academicchatter and @astrophysics groups to your followings and cc'ed them for a broader diffusion.

AlexSanterne , to academicchatter
@AlexSanterne@astrodon.social avatar

, I am celebrating my 4 years without flying ✈️.

The ’s is perturbed by activites. One of the easiest things to do towards is to cut air travels. Thus, 4 years ago, I cut my frequent flyer cards and decided to , using only low- travel means such as .

@StayGrounded_net @labos1point5 @academicchatter

AlexSanterne OP ,
@AlexSanterne@astrodon.social avatar

@KiwiskiNZ @StayGrounded_net @labos1point5 @academicchatter thanks. I acknowledge it is way easier in Europe with a quite decent train network (could be better of course), compared to an island like NZ.

Congrats too…

AlexSanterne OP ,
@AlexSanterne@astrodon.social avatar

@Reddog @StayGrounded_net @labos1point5 @academicchatter i should’ve mentioned that before that, I was flying 1-2 times per month for my work.

AlexSanterne , to academicchatter
@AlexSanterne@astrodon.social avatar

Very proud to have contributed to the led by Tamara Ben-Ari et al. from @labos1point5 analysing the ~ 130 000 from ~160 units in over 2019 and discussing their emissions. Most importantly, the paper reports various strategies and quantify their potential for reducing their .

@academicchatter

read more: https://eartharxiv.org/repository/view/5995/

Mitigation potential of modal shift from plane to train as a function of distance. Vertical lines correspond to median time travel by train and rectangles express the uncertainty related to train speed, with 150 km/h±60 km/h. The three numbers indicate key routes in France with 1: Paris-Toulouse, 2. Paris-Montpellier and 3. Paris-Nice, contributing respectively to 14%, 7% and 16% of total domestic GHG emission from air travel.
Percentage of total (plane, train, car) travel-induced GHG reductions from single or combined options. Colors represent the intensity in GHG mitigation potential with yellow options offering the greatest potential. Each column corresponds to a specific modal shift policy, characterized by a threshold distance(and average travel time), below which a complete shift from plane to train is assumed. Modal shift options are always applied first. Each line corresponds to a specific air travel moderation policy applied at research unit scale. Moderation options are expressed in missions (equivalent to a round trip) and modal shift are considered per segment (equivalent to a one way trip). Options which correspond to actual per-capita per-year research unit median are presented at the third modality in each moderation option (i.e.,1 conference every 3yrs, 1 trip every 4 years, 5,800 km and 1 trip per yr).

AlexSanterne , (edited ) to academicchatter
@AlexSanterne@astrodon.social avatar

"Saying NO !" decision tree for

I just found this awesome flow chart providing an accurate decision tree on when and how to say at work.

I'm gonna print it and stick it on my office door !

@academicchatter

credits: @gbosslet

AlexSanterne OP ,
@AlexSanterne@astrodon.social avatar

@jaztrophysicist @academicchatter I like this one too...

AlexSanterne , (edited ) to academicchatter
@AlexSanterne@astrodon.social avatar

Very interesting free for early-career working in

How to write
better papers and proposals ?

-> https://www.writingclass.eu/

@academicchatter @astrophysics

AlexSanterne , (edited ) to academicchatter
@AlexSanterne@astrodon.social avatar

I signed this group letter, together with @valmasdel, @cassouman40 and 300 other scientists in .

The megaproject , emblematic of -harming projects, is being criticized by . It's the tree that hides the forest. We must adopt a global Non-Proliferation Treaty

Such projet will transform the in an uninhabitable .

https://www.lemonde.fr/en/opinion/article/2023/09/14/time-has-come-to-abandon-fossil-fuels-and-make-a-resolute-choice-in-favor-of-low-carbon-energy-sources_6135273_23.html



@academicchatter

aram , (edited ) to academicchatter
@aram@aoir.social avatar

In previous years, I've invited undergrads to post to Tw*tter during my class sessions, as an alternate way to participate & as a shared (public) backchannel adding extra digital materials to our conversations.

This year, for obvious reasons, that's impossible, so I'm asking them to do so via Mastodon (which none of my students have used before).

It'll be a little experiement. Let's see whether gets any use from my students.

@commodon @academicchatter @tstruett

AlexSanterne ,
@AlexSanterne@astrodon.social avatar

@aram @commodon @academicchatter That's a smart way of having them following the course while using their smartphone (that they use anyway)...

AlexSanterne , (edited ) to academicchatter
@AlexSanterne@astrodon.social avatar

I have the feeling that this paper is motivating even more to quit #X than all 's decisions over one year.

So many of my colleagues are now joining other social networks... 🤣

R.I.P. #X

"Thousands of scientists are cutting back on Twitter, seeding angst and uncertainty"

https://www.nature.com/articles/d41586-023-02554-0

@academicchatter

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