{"id":2084,"date":"2022-10-11T03:53:22","date_gmt":"2022-10-11T02:53:22","guid":{"rendered":"https:\/\/straszaks.co.uk\/?p=2084"},"modified":"2022-10-11T03:53:45","modified_gmt":"2022-10-11T02:53:45","slug":"im-still-alive-circuits-madeira-and-aviemore","status":"publish","type":"post","link":"https:\/\/straszaks.co.uk\/?p=2084","title":{"rendered":"I’m still alive! Circuits, Madeira, and Aviemore!"},"content":{"rendered":"\n

Hello all- or anyone around! I figured I should just add a short blog-style post here given that well… it’s a blog, and I hope it’s stylish! Ah hah enough of the jokes. Anyhow-<\/p>\n\n\n\n

It’s been a slow few months for me psychologically- being home is taking a toll, and publishing my MSc thesis has become more of a dream at this point given that psychological state. That being said, I am enjoying myself quite a bit!<\/p>\n\n\n\n

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Above you’ll see a lil’ gallery- I’ve taken up “making” as they call it- just basic circuitry and the like, have gotten a fair few macro shots recently, have been working on astronomical catalogue reduction techniques (here you see some local LSR clipping- I’ll describe that a bit another time!) and also have some shots from Madeira on my recent trip to see milady!<\/p>\n\n\n\n

The end goal for the circuitry you ask? A bat recorder- one that’s just as good as the Audiomoth (for what I need at least) and one that is also cost effective- that I can do myself easily too with my own firmware for it. “Why?” you might ask… well, seems like it’d be fun! I plan to include temperature\/humidity sensors onboard to provide extra data which would indeed prove useful for data science, including an optional solar module too. Anyway- it’ll keep me occupied for a while! I have to admit though- soldering is damned fun!<\/p>\n\n\n\n

I’ll describe the LSR bit now I suppose. When reducing an astronomical catalogue, if you want to deal with non-disc stars, you tend to do what’s called an LSR-cut. “Local Solar Rest”-cut. That is to say, a star that is moving near to the local disk vel<\/em>ocity *emphasis* is likely to belong to the disk at that point. Generally in a survey you end up doing an LSR cut w.r.t our<\/em> local disk velocity- but why that? <\/p>\n\n\n\n

Well, generally you’re trying to remove field stars from our local neighbourhood- pesky as they are. Well, you can also do a general LSR cut- i.e. remove all stars if they’re close to their <\/em>local disk velocity. You might ask “Well, why the hell would I do that? That removes all the disk stars!” Well when it comes to stellar streams, that might just be quite useful- here’s a cut *without* that adaptive bit, just using a static value for the LSR velocity.<\/p>\n\n\n\n

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Before-after, the before being the static LSR value, the latter being “adaptive”<\/figcaption><\/figure>\n\n\n\n

Mind you, this is all just based on what I’ve been told by my supervisor (ex-supervisor?… mentor- that sounds best, he is quite great.) It makes sense though- that big green clump is what we’re after, and the red clump is mainly disk stars that are more similar to our sun. Obviously the “adaptive” method is best- you avoid losing too many of the more useful stars! Much more conservative. <\/p>\n\n\n\n

Anyway… what else is there… well, not much. I’ve added some extra photos to the site, and am currently processing my Madeira catalogue from the latest trip- I will make sure to update the site for those once I have them done and release another relaxing music-photo video for them. Until then, enjoy yourselves! I need to find a job though- my funds are running out, and solder\/flux aren’t cheap! <\/p>\n","protected":false},"excerpt":{"rendered":"

Hello all- or anyone around! I figured I should just add a short blog-style post here given that well… it’s a blog, and I hope it’s stylish! Ah hah enough of the jokes. Anyhow- It’s…<\/p>\n","protected":false},"author":1,"featured_media":2085,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2084","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/straszaks.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/2084","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/straszaks.co.uk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/straszaks.co.uk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/straszaks.co.uk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/straszaks.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2084"}],"version-history":[{"count":2,"href":"https:\/\/straszaks.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/2084\/revisions"}],"predecessor-version":[{"id":2092,"href":"https:\/\/straszaks.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/2084\/revisions\/2092"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/straszaks.co.uk\/index.php?rest_route=\/wp\/v2\/media\/2085"}],"wp:attachment":[{"href":"https:\/\/straszaks.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2084"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/straszaks.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2084"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/straszaks.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2084"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}