Graeme Addison

Astrophysicist at JHU, Baltimore @JHUPhysicsAstro. Views are my own. He/His.

[Graeme Addison @AddisonGraeme]

@GregHerczeg Are you saying all the revenue from ApJ authors is only used to pay ApJ publication-related costs (as opposed to covering other costs more broadly in AAS)?

[Graeme Addison @AddisonGraeme]

@ClaireLamman @desisurvey 👀

[Graeme Addison @AddisonGraeme]

@cosmic_mar @jwuphysics Yeah same for me.

[Graeme Addison @AddisonGraeme]

@DScol @CburgesCliff Sorry Dan I don't understand the second row of the table - is the -2.3 vs +1.4 the direct comparison from using the same 7 SN Hosts used by CCHP?

[Graeme Addison @AddisonGraeme]

@cosmic_mar @EthanAnderes Thanks! By the way, did you have any more repos for our LAMBDA Julia list?

[Graeme Addison @AddisonGraeme]

Random cosmology question: Does anyone have or know of code to estimate an angular correlation function, C(\theta) on a pixelized (HEALPix) sky map? I think PolSpice does this but I don't know that it has the option to e.g. adjust the \theta-binning.

[dansdarkmatters @dansdarkmatters]

Job advert: Research Software Engineer.
At the UK data centre for the Simons Observatory project.
The post primarily involves optimising & running analysis workflows for the small aperture telescopes. https://t.co/dYJCHbm1RD
Please circulate to potentially interested candidates.

[Graeme Addison @AddisonGraeme]

@Niall_Jeffrey @theDESurvey Hi, very nice! How should I think about where exactly the extra info over just the Cl is coming from? I guess non-Gaussian information on small / small-ish scales?

[Graeme Addison @AddisonGraeme]

@eriniASTRO Congratulations!

[NASA LAMBDA @NASA_LAMBDA]

The CLASS 40 GHz 2016-2022 Data Release is now available on LAMBDA (https://t.co/k3BLLaXKJF).

[Graeme Addison @AddisonGraeme]

@CosmoCora @Astro_Jonny Sure, I understood what you meant, I was just curious if generic universe vs our Universe is the same word in German (since it would be capitalized in either case).

[Graeme Addison @AddisonGraeme]

@florian_beutler Hi Florian, do you know if the presentations can be viewed online somewhere?

[Graeme Addison @AddisonGraeme]

@davidwhogg I'm not familiar enough with the Gaia/WISE data, calibration etc. to know what issues there might be (hey, this is why *I* was asking *you*!)

Generically one could test for clustering signal varying with sky mask / splitting up the sky. Assuming any contamination is anisotropic.

[Graeme Addison @AddisonGraeme]

@davidwhogg Well, I know there were problems recovering large-scale power in BOSS, for example (see https://t.co/47dujzTbcr). So when you said Quaia is "great for ultra-large scales", I was wondering how much you'd done to check for or remove contaminants / spurious clustering.

[Graeme Addison @AddisonGraeme]

@davidwhogg Looks very useful! How do you validate the clustering on large scales? Like how do you know the large-scale modes are being recovered accurately?

[Graeme Addison @AddisonGraeme]

@thebrokenplate What's the story with the deer? Hadn't seen that one before.

[Graeme Addison @AddisonGraeme]

@MBKplus @astrocaits Thanks!

[Graeme Addison @AddisonGraeme]

@MBKplus @astrocaits Do you know roughly how massive the most massive dark matter halos at redshift 16 are in LCDM N-body sims?

[Graeme Addison @AddisonGraeme]

@taylorjhoyt How does this study compare with Anderson et al. https://t.co/M5Ife3aK73 who are claiming significant variability of stars at the TRGB?