Only AGN, no host Galaxy

[muryelgp]

Hi, I'd like to use cigale to fit a source that is completely AGN dominate, the host galaxy is not even detected, it seems I cannot have only the skirtor2016, xray, redshifting SED modules, does it always requires a stellar component?

If I add a stellar component, but try to make the stellar component negligible, by doing fracAGN=0.999999999, it does not fit!

I get: 'No suitable model found for E2. It may be that models are older than the universe or that the χ² are very large.'

[Guang91]

Yes, you will need a stellar component and a fracAGN close to 1.
As it says, could you check if your stellar age setting is older than the universe?

[muryelgp]

Thanks!

but, I already have stellar component and a fracAGN close to 1, still same error.
I have tried several ages, I always get the same thing.

[Guang91]

Could you share your pcigale.ini and data files?

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On Thu, Mar 21, 2024 at 9:03 PM Muryel Guolo Pereira < ***@***.***> wrote: Thanks! but, I already have stellar component and a fracAGN close to 1, still same error. I have tried several ages, I always get the same thing. — Reply to this email directly, view it on GitHub <#80 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AB4OFGFLGE3XVOYKXL4SINLYZM4JFAVCNFSM6AAAAABFCCTPJ6VHI2DSMVQWIX3LMV43SRDJONRXK43TNFXW4Q3PNVWWK3TUHM4DQNZQGQ3DK> . You are receiving this because you commented.Message ID: ***@***.***>

[muryelgp]

eRO2.txt
pcigale.ini.txt

I'v changed the from '.ini' to '.ini.txt' because '.ini' was not uploading here

[muryelgp]

On a side note. Fig 6 of your 2020 paper had a AGN only fit, is that not possible anymore?

[Guang91]

I think you will need a dust attenuation module and a dust emission module. Although these are for galaxies, CIGALE needs them to normalize AGN emission.

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On Thu, Mar 21, 2024 at 9:34 PM Muryel Guolo Pereira < ***@***.***> wrote: On a side note. Fig 6 of your 2020 paper had a AGN only fit, is that not possible anymore? — Reply to this email directly, view it on GitHub <#80 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AB4OFGBUTMWT2RQVH44OZWLYZM753AVCNFSM6AAAAABFCCTPJ6VHI2DSMVQWIX3LMV43SRDJONRXK43TNFXW4Q3PNVWWK3TUHM4DQNZQG4ZDI> . You are receiving this because you commented.Message ID: ***@***.***>

[muryelgp]

Makes sense, I will try. Thanks!

On a side note. Fig 6 of your 2020 paper had a AGN only fit, is that not possible anymore?