User Jim421616

1

14

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2

answers

1k

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Quasar mass and accretion rates

quasars accretion-discs

Jul 6 '18 at 4:12 DeltaEnfieldWaid 3,060

11

votes

1

answer

2k

views

A “strange” unit radio astronomy

radio-astronomy units

Mar 5 '19 at 12:06 Mick 1,270

7

votes

1

answer

92

views

Why is the Milky Way's SMBH inactive?

galaxy milky-way supermassive-black-hole active-galaxy

Jun 25 at 13:01 pela 27.8k

1

6

votes

1

answer

102

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3C273 jet mass estimate

quasars resource-request astronomical-jet estimate synchrotron-radiation

Apr 1 at 7:48 B--rian 5,000

4

votes

1

answer

123

views

Tuning radio telescopes

radio-astronomy redshift radio-telescope hydrogen

May 12 at 10:23 B--rian 5,000

3

votes

1

answer

26

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Why are the radio images of the jet of 3C 273 different?

quasars image-processing

1h ago Mikhail Lisakov 101

3

votes

1

answer

64

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An image for the unified model of AGN

active-galaxy resource-request

Apr 16 at 8:35 B--rian 5,000

3

votes

0

answers

91

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Number of obscured AGN compared to unobscured AGN

galaxy quasars active-galaxy

Apr 15 at 14:17 B--rian 5,000

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2

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1

answer

37

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Photometry templates — what are the templates of?

distances redshift photometry

Jul 21 at 16:25 Daddy Kropotkin 2,595

2

votes

1

answer

39

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Radio SEDs for quasars

radio-astronomy spectroscopy quasars

Jul 17 at 18:09 HDE 226868♦ 32.4k

2

votes

0

answers

77

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Luminosity of the Milky Way compared to Seyfert galaxies

galaxy milky-way luminosity seyfert-galaxy

Apr 15 at 10:53 B--rian 5,000

2

votes

0

answers

44

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Cross-matching astronomical catalogs

observational-astronomy star-catalogues

Jan 20 at 0:53 uhoh 28.9k

2

votes

0

answers

69

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Correction to inverse square law for cosmology

cosmology spectroscopy quasars

Feb 1 '19 at 2:04 Jim421616 1,392

2

votes

2

answers

106

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Wavelengths for observed objects — emitted or observed?

redshift wavelength

Aug 7 '18 at 8:25 Community♦ 1

2

votes

1

answer

99

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Units of integrated flux density (irradiance) along longitudes

fundamental-astronomy units

Nov 10 '17 at 22:52 eshaya 2,668

2

votes

2

answers

865

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Practicing image processing and analysis

data-analysis photography

Aug 11 '17 at 14:26 zephyr 13k

1

vote

1

answer

44

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Photometry systems

photometry

Jul 18 '19 at 2:31 Community♦ 1

1

vote

1

answer

29

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Comparing info for WISE and GALEX

telescope space-telescope magnitude wavelength

Jul 15 '19 at 9:02 Peter Erwin 11.9k

1

vote

1

answer

59

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Regions and size of an AGN

quasars active-galaxy

Jul 8 '19 at 2:31 astrosnapper 6,452

1

vote

1

answer

203

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Exposure time for spectroscopy compared to photometry

observational-astronomy spectroscopy photometry

Jun 13 '19 at 6:45 ProfRob 100k

1

vote

0

answers

40

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Causes of emission of accretion disk

black-hole quasars accretion-discs

Jun 12 '19 at 3:03 Jim421616 1,392

1

vote

0

answers

26

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Anisotropy of quasar distribution

quasars resource-request

Apr 8 '19 at 22:28 Jim421616 1,392

1

vote

0

answers

37

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Relationship between photometric colour and redshift, part two

redshift photometry

Mar 28 '19 at 0:04 Jim421616 1,392

1

vote

1

answer

71

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Relationship between photometric colour and redshift

redshift photometry

Mar 27 '19 at 23:44 ProfRob 100k

1

vote

0

answers

63

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Regression line in a colour-colour diagram

photometry magnitude

Sep 25 '18 at 22:30 Jim421616 1,392

1

vote

3

answers

145

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Ratios of magnitudes instead of differences

star observational-astronomy magnitude

Aug 17 '18 at 11:14 ProfRob 100k

1

vote

2

answers

78

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Can I take logarithms of magnitudes (which are already log) [closed]

redshift quasars magnitude

Aug 16 '18 at 13:28 Kornpob Bhirombhakdi 1,361

1

vote

2

answers

266

views

Problems with FITS headers

data-analysis python fits-header

Sep 25 '17 at 9:38 Community♦ 1

0

votes

1

answer

52

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Why is NEOWISE used for galactic observation?

space-telescope

Oct 25 '17 at 19:07 eshaya 2,668

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29 Questions

Quasar mass and accretion rates

A “strange” unit radio astronomy

Why is the Milky Way's SMBH inactive?

3C273 jet mass estimate

Tuning radio telescopes

Why are the radio images of the jet of 3C 273 different?

An image for the unified model of AGN

Number of obscured AGN compared to unobscured AGN

Photometry templates — what are the templates of?

Radio SEDs for quasars

Luminosity of the Milky Way compared to Seyfert galaxies

Cross-matching astronomical catalogs

Correction to inverse square law for cosmology

Wavelengths for observed objects — emitted or observed?

Units of integrated flux density (irradiance) along longitudes

Practicing image processing and analysis

Photometry systems

Comparing info for WISE and GALEX

Regions and size of an AGN

Exposure time for spectroscopy compared to photometry

Causes of emission of accretion disk

Anisotropy of quasar distribution

Relationship between photometric colour and redshift, part two

Relationship between photometric colour and redshift

Regression line in a colour-colour diagram

Ratios of magnitudes instead of differences

Can I take logarithms of magnitudes (which are already log) [closed]

Problems with FITS headers

Why is NEOWISE used for galactic observation?