Are the Half-Sky maps available in fits format?

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ethlau
Posts: 4
Joined: Wed Aug 04, 2021 3:29 am

Are the Half-Sky maps available in fits format?

Post by ethlau »

Hi,

I am interested in analyzing the half-sky maps in https://erosita.mpe.mpg.de/dr1/AllSkySu ... yMaps_dr1/, but they don't seem to be download-able as fits. Are they available somewhere else in archive? If not, are there any plans to make them publicly available in the near future? Thanks!

Erwin
SusanneFriedrich
Posts: 3
Joined: Mon Oct 09, 2023 9:01 am

Re: Are the Half-Sky maps available in fits format?

Post by SusanneFriedrich »

Hi Erwin,

it is planned to release such maps, as soon as they become available. Broadband maps will be released soon.

Susanne
ethlau
Posts: 4
Joined: Wed Aug 04, 2021 3:29 am

Re: Are the Half-Sky maps available in fits format?

Post by ethlau »

Hi Susanne,

That's great! What is the expected release date? Which healpix resolution will the maps be?

Thanks,
Erwin
JeremySanders
Posts: 28
Joined: Mon Jun 28, 2021 7:24 am

Re: Are the Half-Sky maps available in fits format?

Post by JeremySanders »

We've put some half sky maps here from Zheng et al.: https://erosita.mpe.mpg.de/dr1/AllSkySu ... yMaps_dr1/

However, they are projected maps and are not in Healpix format.
ethlau
Posts: 4
Joined: Wed Aug 04, 2021 3:29 am

Re: Are the Half-Sky maps available in fits format?

Post by ethlau »

Thanks Jeremy!

I've managed to generate healpix maps from the tiles using your script https://github.com/jeremysanders/ero_hips_gen script, and this other one https://gist.github.com/tboch/f68cd1bb1 ... 40e54ba692.

-Erwin
JeremySanders
Posts: 28
Joined: Mon Jun 28, 2021 7:24 am

Re: Are the Half-Sky maps available in fits format?

Post by JeremySanders »

Hi Erwin

I'm glad you've managed. However, remember that there's light leak in the soft band that's present in the pipeline-produced maps. There's also some (relatively mild) flaring in the harder band (see Merloni et al. 2.3-5.0 keV map).

Jeremy
ethlau
Posts: 4
Joined: Wed Aug 04, 2021 3:29 am

Re: Are the Half-Sky maps available in fits format?

Post by ethlau »

Thanks. If I am not mistaken, it seems that only the tiles from all of the combined cameras (T1-T7) with filter are available for download (i.e. maps with '02?') in DR1. Will the tiles from individual camera available in the near future?

Erwin
MiriamRamos
Posts: 23
Joined: Wed Jun 23, 2021 11:46 am

Re: Are the Half-Sky maps available in fits format?

Post by MiriamRamos »

Hello,

You can create images (and/or event files) for the individual cameras from the combined file. You can use the eSASS task evtool by activating the option telid to select the telescope (check here: https://erosita.mpe.mpg.de/dr1/eSASS4DR ... l_doc.html).

Cheers,
Miriam
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