Rubén Herrero-Illana

Interferometría...¿Magia o Ciencia?

Introduction

•

Rubén Herrero-Illana Charla CCD - 16/03/2011

Introduction

• • Hubble resolution: 0.05” (2.4m mirror).

Rubén Herrero-Illana Charla CCD - 16/03/2011

Introduction

• • Hubble resolution: 0.05” (2.4m mirror).• Radio (1cm) 50 Km mirror!

Rubén Herrero-Illana Charla CCD - 16/03/2011

Introduction

• • Hubble resolution: 0.05” (2.4m mirror).• Radio (1cm) 50 Km mirror!

Rubén Herrero-Illana Charla CCD - 16/03/2011

Introduction

• • Hubble resolution: 0.05” (2.4m mirror).• Radio (1cm) 50 Km mirror!

Rubén Herrero-Illana Charla CCD - 16/03/2011

Basics

Rubén Herrero-Illana Charla CCD - 16/03/2011

Double slit experiment

Rubén Herrero-Illana Charla CCD - 16/03/2011

Double slit experiment

Rubén Herrero-Illana Charla CCD - 16/03/2011

D

Double slit experiment

Rubén Herrero-Illana Charla CCD - 16/03/2011

DD

Double slit experiment

Rubén Herrero-Illana Charla CCD - 16/03/2011

DD

Double slit experiment

Rubén Herrero-Illana Charla CCD - 16/03/2011

DD

Double slit experiment

Rubén Herrero-Illana Charla CCD - 16/03/2011

DD

Double slit experiment

Rubén Herrero-Illana Charla CCD - 16/03/2011

Double slit experiment

Rubén Herrero-Illana Charla CCD - 16/03/2011

Double slit experiment

Rubén Herrero-Illana Charla CCD - 16/03/2011

Double slit experiment

Rubén Herrero-Illana Charla CCD - 16/03/2011

FT!!

Double slit experiment

Rubén Herrero-Illana Charla CCD - 16/03/2011

Rendijas

Pantalla

Foco

Double slit experiment

Rubén Herrero-Illana Charla CCD - 16/03/2011

Rendijas

Pantalla

Fuente

Double slit experiment

Rubén Herrero-Illana Charla CCD - 16/03/2011

Pantalla

Fuente

Antenas

Double slit experiment

Rubén Herrero-Illana Charla CCD - 16/03/2011

Fuente

Antenas

Ordenador

Double slit experiment

Rubén Herrero-Illana Charla CCD - 16/03/2011

Fuente

Antenas

Ordenador

D

u-v plane

Rubén Herrero-Illana Charla CCD - 16/03/2011

B

u-v plane

Rubén Herrero-Illana Charla CCD - 16/03/2011

B

u-v plane

Rubén Herrero-Illana Charla CCD - 16/03/2011

B

u

v

u

v

u-v plane

Rubén Herrero-Illana Charla CCD - 16/03/2011

B

u

v

u

v

u-v plane

Rubén Herrero-Illana Charla CCD - 16/03/2011

B

u

v

u

v

u-v plane

Rubén Herrero-Illana Charla CCD - 16/03/2011

B

u

v

u

v

u-v plane

Rubén Herrero-Illana Charla CCD - 16/03/2011

B

u

v

u

v

Rubén Herrero-Illana Charla CCD - 16/03/2011

Antenas

2 antennas

u-v coverage: Dirty beam

u-v coverage: Dirty beam

Rubén Herrero-Illana Charla CCD - 16/03/2011

Antenas

3 antennas

Rubén Herrero-Illana Charla CCD - 16/03/2011

Antenas

4 antennas

u-v coverage: Dirty beam

Rubén Herrero-Illana Charla CCD - 16/03/2011

Antenas

5 antennas

u-v coverage: Dirty beam

Rubén Herrero-Illana Charla CCD - 16/03/2011

Antenas

6 antennas

u-v coverage: Dirty beam

Rubén Herrero-Illana Charla CCD - 16/03/2011

Antenas

7 antennas

u-v coverage: Dirty beam

Rubén Herrero-Illana Charla CCD - 16/03/2011

Antenas

8 antennas

u-v coverage: Dirty beam

Rubén Herrero-Illana Charla CCD - 16/03/2011

Antenas

8 antennas x 2 samples

u-v coverage: Dirty beam

Rubén Herrero-Illana Charla CCD - 16/03/2011

Antenas

8 antennas x 6 samples

u-v coverage: Dirty beam

Rubén Herrero-Illana Charla CCD - 16/03/2011

Antenas

8 antennas x 30 samples

u-v coverage: Dirty beam

Rubén Herrero-Illana Charla CCD - 16/03/2011

Antenas

8 antennas x 107 samples

u-v coverage: Dirty beam

Observations

Rubén Herrero-Illana Charla CCD - 16/03/2011

Main ideas

• Flux calibrator.• Phase calibrators.• Best u-v coverage.• Real time VS Tapes.

Rubén Herrero-Illana Charla CCD - 16/03/2011

Interferometers

Rubén Herrero-Illana Charla CCD - 16/03/2011

Interferometers

Rubén Herrero-Illana Charla CCD - 16/03/2011

EVLA

Interferometers

Rubén Herrero-Illana Charla CCD - 16/03/2011

EVLAeMERLIN

Interferometers

Rubén Herrero-Illana Charla CCD - 16/03/2011

EVLAeMERLIN

Plateau de Bure

Interferometers

ALMA

Interferometers

ALMA

LOFAR

Interferometers

ALMASKA

LOFAR

VLBI

Rubén Herrero-Illana Charla CCD - 16/03/2011

Space - VLBI

Rubén Herrero-Illana Charla CCD - 16/03/2011

Rubén Herrero-Illana Charla CCD - 16/03/2011

IR and beyond...

Rubén Herrero-Illana Charla CCD - 16/03/2011

Cygnus A

Jennison & Das Gupta (1953)

Rubén Herrero-Illana Charla CCD - 16/03/2011

Cygnus A

Jennison & Das Gupta (1953)

Rubén Herrero-Illana Charla CCD - 16/03/2011

Cygnus A

Jennison & Das Gupta (1953)

Rubén Herrero-Illana Charla CCD - 16/03/2011

Cygnus A

Jennison & Das Gupta (1953)

Rubén Herrero-Illana Charla CCD - 16/03/2011

Jennison & Das Gupta (1953)

Krichbaum et al. (1998)

Cygnus A

Data reduction

Rubén Herrero-Illana Charla CCD - 16/03/2011

Software

Rubén Herrero-Illana Charla CCD - 16/03/2011

AIPSMost powerful software.

Created in 1970s (ancient FORTRAN).

IRAF ‘like’.

Software

Rubén Herrero-Illana Charla CCD - 16/03/2011

AIPS

CASA

Most powerful software.

Created in 1970s (ancient FORTRAN).

IRAF ‘like’.

Developed for ALMA.

C/C++ kernel / Python interface.

Nearly completed.

Step by step

• Data examination.• Amplitude calibration.• Phase calibration.• Imaging.

Rubén Herrero-Illana Charla CCD - 16/03/2011

Step by step

• Data examination.• Amplitude calibration.• Phase calibration.• Imaging.

Rubén Herrero-Illana Charla CCD - 16/03/2011

Imaging

Rubén Herrero-Illana Charla CCD - 16/03/2011

(J. Pety)

Source

Imaging

Rubén Herrero-Illana Charla CCD - 16/03/2011

(J. Pety)

Source Dirty beam(PSF)

Imaging

Rubén Herrero-Illana Charla CCD - 16/03/2011

(J. Pety)

Source Dirty beam(PSF)

Dirtyimage

Imaging

Rubén Herrero-Illana Charla CCD - 16/03/2011

(J. Pety)

Source Dirty beam(PSF)

Dirtyimage

Cleanimage

Some examples(LIRG biased!)

Rubén Herrero-Illana Charla CCD - 16/03/2011

Arp 299: Hunting SNe & AGN

Rubén Herrero-Illana Charla CCD - 16/03/2011

Pérez-Torres et al. 2009

Arp 299: Hunting SNe & AGN

Rubén Herrero-Illana Charla CCD - 16/03/2011

Pérez-Torres et al. 2009 Pérez-Torres et al. 2010

IC 1623

Rubén Herrero-Illana Charla CCD - 16/03/2011

3.6cm 814nm 435nm

¡Muchas gracias!